[Aren Siekmeier]

Roughtop also wears significantly. We've used it since '08 in various situations, and none of ours has lasted more than a season (~ 2 events worth of matches plus minimal practice and some demos). We have never used wedgetop, but our own experience with roughtop and what we've heard of wedgetop makes it sound like they wear similarly, and they are a very similar material (roughtop is nitrile while wedgetop is a natural rubber). I'm sure other teams have more detailed anecdotes of comparison. Also, I've heard that Colson caster wheels have a very long life and similar performance to traction wheels using Andymark tread, but again have never experienced this first hand.

For traction on the bridge, it has actually been determined by some (including 2175 in qualitative tests) that the 2012 kit wheels have better traction on polycarb, and I think the Colsons may as well.