Guys, when u r doing a fast solo, do you use both upstroke and downstroke alternatively or u only stick to either one? Cz i have problem catching up with Fade to black intro where there is a fast part there

Well, the best way to gain stamina is by practising. Learn a few fun heavy downpicking songs:

1) Trivium - Like Light to Flies
2) Avenged Sevenfold - Unholy Confessions
3) Bullet for My Valentine - Suffocating Under Words of Sorrow/ Waking the Demon

Beside Master of Puppets, those first 3 songs were the ones that helped with my downpicking. And make note that you should really dig into the strings to get the real 'ooomph' sound of downpicking. Then try singing while playing, that would be even cooler.

Anyone here heard of the new Peavey Vypyr series?Supposedly something like the Roland Cube series but even better.I'm lookin forward on trying one

fast solos requires alternate picking. u can't do the fade to black solo with only down picking, it's tiring(sounds horrible too). the trick is try to predetermine the position of your fingers, on both hand. minimize the movement of your hand, let your fingers move around. and, practice helps. i'm having trouble with sweet child's solo where the wah came it, but i'm almost nailing it .
masters is on downstroke. but this is rhythm part, not solo part. so it can be done with downstroke.

1st, check your positioning(guitar and hand). make sure you're comfortable and your wrist can strike easily. why? i find it difficult to downstroke on a sitting position, standing is easier.
2nd, warm up. always warm up before doing masters. it'll be painful and tiring if you just dive in.
3rd, use only your wrist and fingers(right hand). try to get your right hand into a smooth motion.

hope that helps. if you find MOP is difficult, try blackend (with downstroke of course)  .
hope my advice above can help.
yeah, MoP is actually easy once you get the hang of it. although some part is a bit tricky, i salute you if you can downstroke the interlude riff after the solo, just before getting back to main riff. the one with C scale i think(?).

but in ur video, ur really pawn him la, cant hear him at all 
anyway, GREAT PLAYIN!! i like it!

is korean dean good?