Just some stuff i want to point out
Up tilt doesn't break asdi down crouch cancel until like 60 ish percent i think so until then they can just hold down and punish you.
There isn't much reason to jab reset here if your just gonna up tilt. raw up tilt would be easier to do on reaction since its simpler, and it would give them fewer oppertunities to escape via sdi up.
Utilt breaks ASDI down and causes a knockdown at like 20% before the utilt. If they do hold down you just do double utilt. Because even if they tech it will pretty much always be tech in place. (unless they are on that next level stuff... which no one is) Leffen, Westballz, and Crush love using this. If they SDI up it combos better. If they hold down just do 2. However, if you let them actually crouch it becomes punishable.
The closest I've gotten to doing an actual reaction tech chase with Falco is you do turnaround utilt/grab for tech in place and do dash sh dair to cover rolls at low% and dash attack at higher %s. This is a true reaction tech chase though. You have to place yourself on tech in place with wavedash or dash (if you are good at doing full dash into instant turnaround utilt)
However, he doesn't have the falcon luxury of being able to do complete option coverage until ASDI down vs dash attack is off the table. (about 72% for fox) And even then his "option coverage" isn't even actual option coverage. It's still a reaction tech chase, albeit much easier.
The way you do that one is you have to short hop right before they hit the ground (you want to space it so that you land where they would tech in place. I personally space it with wavedashes and shield stops but it can technically be done out of a dash or even run.) and don't do anything (not even fastfall) until they tech. Then you have to determine which one it was and act accordingly.
If they missed tech or tech in place do dair and then fastfall*. (depends on your shorthop timing. sometimes you don't even have to fastfall until after the dair hits them.) Surprisingly enough hitting cstick down in reaction to tech is actually pretty easy.
If they tech roll you want to just fastfall the short hop (don't do anything. not even laser *
more on this later.) and then dash which way they go and then dash attack. It's not instant dash attack though and the timing depends on a couple factors like initial sh spacing and tech roll length.
Okay now for a couple little tidbits with this technique:
- It's hard. Falco doesn't have a sheik dthrow or falcon dthrow to set these situations up. So you have to get good at doing the Plup style of tech chasing where you identify when you can set up a tech chase whenever combo'ing and use movement to set yourself up for success.
- The dash short hop dair takes much more time in comparison to boost grab/dash jc grab and therefore covering rolls on true reaction is a little difficult. Still possible though
- You cannot shot a laser to cover tech in place and then cover other things because if your laser is properly timed for tech in place it will actually hit them out of their roll away and they will be actionable much earlier and will be able dash back.
- However if you accidentally misreact and dair when they teched rolled then you can shoot a dash shield stop laser to continue the pressure. (don't do full dash laser only because by the time it comes out you've already hopped into their wakeup utilt.) This is countered by wakeup dash in aggression though.
- Make sure you hit with strong dash attack. Weak dash attack loses to ASDI down tech in place till like 125%. The only thing is also make sure you don't do the strong dash attack at too early of a % cause they can also ASDI down tech in place shine very reliably until 72% (they can still double stick DI tech strong dash attack till like 88% but it gives them a roll which you can chase with shield stop laser anyway.)
- If you are playing vs a character with mediocre tech rolls you can fastfall the SH and fsmash their tech roll in.
This hasn't been tested frame by frame in every scenario but it seems to work well enough from my mediocre testing.
One little addition. the "NO LASER" rule can be broken if they land too far for your shorthop to reach them in general. If that is the case go right ahead and cover that tech in place with laser.