Playing massive amounts of full ring hands will fine tune your ABC poker ability, that is, how to play under optimal conditions:

1. Fairly equal and deep effective stacks (100bb)
2. Full tables (9-10 players)
3. Predictable play.
4. Tight play reigns.

It will also boost your bankroll in a much less swingy way as opposed to MTT's. Once you master the low level ring games, you should have no problem excelling in the first levels of tourney play. After that, however, is when loosening up and being aggressive needs to happen.