My team chose offense, for two reasons:
1. A robot can do at least acceptable defense no matter what (exept maybe if it had an omni drive, which ours does not), but a robot that is built for defense won't be able to play offense very well.
2. Defense is bad. Due to the scoring system in this competition, the higher scoring a match is, the more points all 6 teams get. It is much better to help your own alliance get more points than to work at reducing the score of the other alliance.
When it comes to over the bump versus under the tower, I reccomend reading this:
http://www.chiefdelphi.com/forums/sh...d.php?p=898655