Okay, here's what I feel. Think of the concept of "going all out" as the difference between running a marathon or a sprint. By just trying with your average effort, you're running a marathon, you can go for longer with that. If you go all out, you sprint. You get to your destined point much faster, but it lasts shorter before you're exhausted. Both have their pluses and minuses, it just depends on what situation you're and whether or not you need immediate extreme action or if it's a long-term thing. Now, the emotional side of things changes from person to person. As in what state of mind and body constitutes going all out. I'm a rather calm and collected person myself most of the time, so I think I can give my point of view here too. When you go all out, you stress your muscles more than usual, but the problem is for people like us is that we tend to lose our mental edge and make mistakes we wouldn't normally make if we kept cool. Now if you can keep your thoughts keen and muscles to their limit, that would be ideal of course. But you also tend to lose control if your movements get too extreme. Usually you can brush back any pain for a bit while you're in this mode, but eventually that energy will wear off and you'll be in a very tired state, and pay for pushing yourself so hard. Reminds me when I was playing some sport with good friends. I REALLY wanted to do well, so I pushed myself harder than I should have. I was fine during the game, but afterward my legs had cramps for days.
Now adrenaline, that's something different and the same (PARADOX!). I'm majoring in biology in college, so I could try to explain the science behind adrenaline and similar hormones, but you'd probably get a better explanation from another source. Feel free to come to me with any questions though! This is off the top of my head. Adrenaline pumps through whenever you're serious about something, stressed, excited, or are straining yourself. Adrenaline is released in any extreme circumstance. Like when running a marathon or a sprint, you may get adrenaline either way. However, in practice I personally believe there to be such things as adrenaline SURGES. These come in times where something truly precious is on the line. Someone you love would be in peril and depend on you to save them. You're body and/or mind can become super-human. However, in my opinion, you can't trigger this conscientiously. It just comes naturally when it's supposed to happen, you don't even think about it. I suppose you could try by "fooling" your brain into thinking that such a situation is present, but I can't foresee that having the same effect. You may be able to get a diluted version, however.
Biologically, adrenaline gives you the option to "fight or flight." This term is widely used to describe how it gives you the boost to either face or run away from the threatening situation you are confronted with.
Maybe think of it this way. If you're in a track competition, you really want to win of course. It's the competitive nature. You run as hard as you can. Now if your life or someone else's who you care about dearly was on the line, I would expect you to run even faster than before.
In summary, I feel that the difference between "going all out" and "adrenaline rush" is a blurry one. I believe in your case the former is more conscience and the latter is more naturally stimulated by the situation at hand. But it also depends on how you want to define the words and the circumstances we are concerned with. You can get a technical adrenaline rush while going all out, but I don't believe it would be the same as if something important was at stake (whatever you would call that situation; an adrenaline surge or something else). It's open to debate. Regardless, the integration of body and mind here is pretty interesting.
DISCLAIMER: I'm not a doctor, these are just my theories from experience. I've taken a college-level biology course, but that was a year+ ago. There's a heck of a lot about biology that I don't know, and this whole system itself gets very complicated. If I knew more about it then I could probably give you more scientific answers.
Virtual training update:
I'm still really into SCIV. It just seems to be a game that comes naturally to me. It all flows and makes sense (it's much more realistic than other games). So far my personal best looks like this (NOT real tiers of course):
1) Xianghua - Really, for me, in a class of her own. I finally memorized all of her natural techniques. Now I'm putting it into practice and it's coming along really well. With experience I'll learn the best strategies and strings of attacks and what works when.
2) Cassandra - Very well balanced.
3) Cervantes - Just an insanely good character and I love the dual swords.
4) Amy (who I picked up since I learned that bonus characters, who Scheherazade was one of, aren't allowed in some tournaments for whatever reason. Amy shares the same style) - Also a very good character
Strangely enough, my top two seem to me to be the weaker characters. I just like them though!
Additionally:
BlazBlue: Calamity Trigger comes out in two weeks!!! I can't wait for that! Happens to be released on my birthday too lol.