Hey Mind Trick, sorry it took me so long to watch the vids :< I've been in an anti-smash mood xD. Anyways, I can give you some criticism and stuff, though a bit of it will be elaborating on things you already know.
I might be wrong, but I don't think you have much experience with the Peach match-up, that's just what I got from watching the vids, I say this because it really seemed like you only had a basic idea of what works. First off, the useless DJCs really killed you man... I was so disappointed to see you DJC things for no reason, and end up getting punished for them. Peach just has so much mobility, range and power, that it's almost too simple for her to punish Yoshi out of most mistakes he makes. This means fighting a Peach requires a lot of precision and caution, more so than any other match up for Yoshi, in my opinion. I suggest a lot better spaced f-airs, and no more weak n-airs on Peach's shield(they're punishable by b-air/n-air OoS depending on where you are). Also, you didn't do that great of a job keeping her above you, so I just have to remind you play gay man, and don't be afraid to just jump up to her if you're at low%s to u-air through her aerials if she throws 'em out at you. You don't have to wait for her to come down on you is what I mean. Your edgeguarding was pretty funny to me xD, just try to remain patient vs Peach, and remember once she's in her parasol, she's most likely gonna try to mindgame you with the fast fall.
Now on to the things about your game that I saw that I didn't really like. You are good, defintiely, but there's a lot of things I saw that you could work on. You need to, and I stress this, you NEED to learn to follow up when you get your opponent in an unfavorable position. Too many times you let that Peach lie right in front of you after she failed to tech the f-air(more on this later), or you pulled off a decent hit and failed to link it up with something. Smash is about "consecutive hits," if you hit the opponent, you gotta be on them with something smart. I think I saw a few times where you tried to RDJC n-air (and whiffed) after a small launcher like an u-tilt, where it would've been the perfect opportunity for some b-air combage. Your recovery wasn't terribly good either, you didn't mix it up very often, and it was too aggressive most of the time, just get that ledge, and play it safe from there man. Something I know you're prolly not gonna listen to, but I gotta say it, I love your little shield pressuring thing you do with the quick DJC n-airs, but it's kinda useless unless you do it correctly. Number one key thing to remember about DJC n-air shield pressure is that unless you're great at anticipating grabs, and jabbing/f-tilting them, you MUST be behind the other person's shield. The DJC n-airs are punishable, so you wanna get behind them ASAP with those, and toss in some jabs, fake em out with the f-tilt stun, etc. The point of doing this is to get them to roll/jump, so you can punish(a lot easier if they jump). Also **** THAT D-TILT IT'S WORTHLESS AS PRESSURE!!!! People jump over it, and you have too much lag afterwards, and even if you DO manage to hit with it, you get nothing other than a ****in reset out of it! Your movement is great, but don't get too focused on it, I think this is why your spacing isn't great sometimes. You seem too focused on your movement, and you tended to not take into account your opponents movement when you go in for your approach. That's about all really. Keep it up with your Yoshi skills, and I'll be looking forward to more vids of you. Sorry if I'm harsh, I'm just trying to call everything out that I can see, for you to know. Hope I helped.
So then, like I said, get ready for another session of Moo's Yoshi rants, as I try to describe something Yoshi players really suck at. Tech/get-up chasing/guessing. I've been working on this for so long now, and it's just ridiculously hard with Yoshi. He's just not fast enough to tech chase anyone with a decent techroll, and it hinders his game so much. So here's what I'm doing now. I consider it a huge flaw in Yoshi's game, since he can't keep the pressure continuous, and it's almost too easy to get out of Yoshi's stuff. This is all just basic stuff, but I've just never even heard anyone mention this kind of thing here on the Yoshi boards, and no Yoshi videos really showcase any signs of decent tech-chasing, so here goes.
Yoshi's main combo starter is, without a doubt, his f-air, but unfortunately, this move is just a tad too slow for just about any form of tech-chasing, unless you are great at guessing, OR, you set up the tech yourself. That's right people, try rigging the tech yourself by doing some simple things: Force a tech on a platform, or force a tech at the edge of a stage. Doing either of these severely limits your opponents options, and if caught between you and the edge, there's really only 2 locations your opponent can wind up. Congrats, you've cut a chance thing, into an almost sure punish, if you've got decent reaction time (considering you're on the ground, short hop f-air, for in-place tech, DJC f-air for tech forward, and RDJC f-air for tech behind you) Platforms are a bit different, but the same rule applies in that the length of their tech is cut to some distances where it's actually feasible for Yoshi to punish. So, next time you have somebody in an air combo, unless you're on the middle of FD or DL64, try finishing it with a f-air onto a platform/side of the stage, and get that tech! Very easy to set up a d-smash finisher too.
Now, I know there's that other pesky option of them missing a tech, but honestly, that just makes things easier. If you're on the ground and they miss a tech (say you u-tilt a captain falcon, and he flubs a tech in front of you) IMMEDIATELY JAB TO RESET THEM. Watch Mind Tricks vid, he does this at least 3 times(only one time does he really use it correctly though). Now they have invincibility while they're being reset, but it's almost like a tech in place, so you can punish it. Feel free to u-tilt, charge a smash(look at the third match of the set, where mind trick f-airs peach onto a platform, she misses the tech, he jab resets and then charges a f-smash. BEAUTIFUL!), or hell, my favorite, STANDING GRAB AFTER A JAB RESET(perfect for the spacies). So you miss your jab, and expect a get-up attack? Most of the get-up attacks in the game are laggy, and even Yoshi can shieldgrab them, or you could even go fancy, and double jump through it and hover there waiting for the f-air set-up. Rolls are harder to punish if you miss your jab, but it's about the same as punishing the techrolls: possible on platforms or edges, but hard otherwise.
Unfortunately, for most situations though, in mid-stage, a simple tech away from Yoshi is suffice to get away from any type of punishment that he can deal out. I figured I'd just cover this too, and say that the best thing you can do is just sit back, and egg. It's a lot better to just get out a projectile in the other person's direction to put them into the defensive while getting up, than it is for you to attack prematurely, and get punished upon the probable flub.
****, I wrote too much... Maybe I should've just made another topic. Eh, nobody reads my **** anyways. RAWR YOSHI PLAYERS... RAWR!!! I'm mad!! Go **** **** up!! I know there's someone out there who can impress me! <3 Yoshi players.
~Moo