[jman4747]

Originally Posted by rzoeller

I think equally important as the different materials are the different dimensions. Take a look at the team rough terrain drawings and the official ones to see what I mean. It's possible to build the official ones, but ripping 4x4 lumber does not particularly appeal to me.

EDIT: The 1.5" spacing on the official rough terrain will be interesting for teams not using treads or pneumatic wheels (do these teams exist?)

Yes they do. The real question is how many teams exist who won't pay attention to how their wheels first make contact with a defense or under what circumstances their robot would bottom out. I guarantee there will be stuck robots with pneumatic wheels several times this year. Tank treads not so much but flipping over is still an option. If you use wheels, pneumatic or hard, the spacing matters. Pneumatic wheels does not equal automatic victory.