[Jeffy]

I also agree with the statements about durability. During one match we lost 4 meccanum rollers and many washers and bolts onto the field.
And by the time the finals rolled around all except for one of the 8 standoffs that help our electronics board on had fallen off. The board was held with mostly parachute cord.

Also- if you are running large wheels to get over the bump, put some sort of guard infront of your wheels that will contact the ball. Many robots, including our own were having trouble with "running over" the balls. It is also very difficult to move the ball along the wall and into the goal in your homezone without a wheel guard.