for the third A, why don't you just put an if press A, then change sub - third A?
up smash - why don't you change the bone that the off. coll. and gfx are attached to. I had the same problem with my mario for some reason. i just changed the bone to the base. You could also, for more accuracy, use put the throw bone where the off. coll. and gfx. are supposed to be exactly so you don't have to use x and y offsets or worrying about depth.
edit:
also in the upsmash pic. the bone is 0(base,floor w/e) and has no Y offset - either you want it to hit the ground or you forgot. Other problems could be the flag numbers.Also i think theres a certain explosion gfx that goes back in depth for no reason - it happened when i first started using psa.
- one of the hi4 off. collision box is 0 btw
edit:
Up B - I'm not really too fussed if he flies backwards; it's just that when I use Up B in the air, he rockets up to hyper space but if I use it on the ground he can't move up at all. I've set the momentum to 1 for each of them. Do I need to add "Set Air/Ground" on the gorund Up B subaction?
if its in synch 1 loop, 1 is waay to high - try .1 or .01, also switch the momentum for "if toggle stick pushed forward/back".
-up b on ground, you might need to raise him a bit first in the animation, then it might work ( if he stays put in the animation).