[azapa]

i have noticed that those who pack use a lousy "full" inhale, and do the rest with packs. I suppose the math seems better, although from the first pack you are already on breathold.

I remember the worst blackouts (not whiteouts=overpacking) I saw at a competition were from overpacked divers. like, 20 to 30 packs (20 seconds packing) and then fighting the dive to become negative.