u wont get the same gains as if u were doing one that took more time, but u will still see some nice gains. i dont think eny1 on here has done it but if u dont have much time its probably the best option.

__________________
Age:15 Height: 5' 10" or so. Running Vertical Jump: about 33-35 inches
Highest Poster On SBT
Good, better, best. Never let it rest. Until your good is better and your better is best.
-- Tim Duncan