stick to your TAG game, but free rolls are a good way to learn to beat bad players, alot of these same players play in micro limit, so you can learn to exploit these people for free. Don't play any bull, and when you enter a pot, hold something strong, be careful wit AT-JT in these games, and try your best to isolate. Vary your raises, and look for stack buster
hands. sometimes people cant let AK go on a completely low flop. Be aware though, you can open your hand range in free rolls alot too, mostly in the begining though, as the tournament gets deeper, even those lunies start to play a little tighter. Just learn from them, try things out, and do them when you have had a bad or good streak, learn the differences in aggresion and free rolls are the best place to learn how to exploit very aggresive people. amateurs don't like to be pushed around so if you can get that paradigm shift in them when you have a good hand, you can gain alot of ground. try to be conservitive too, because alot of people are in there to dic* around and are ready to gamble so watch your vpip. Bottom line: it's not a waste of time, you can learn alot, the only thing you have to value is your time, and that is up to you, so if you don't care spending 3 or 4 hours on a free roll, fine, but atleast take the time and learn from the experience. Poker is a game of misdirection, so stick to a TAG game but learn to mix it up. Good luck!