[Tom Line]

To reiterate what Eric H said - 80x20 is problematic at times because the fastening system that it uses is simply not meant to withstand repeated bot collisions, etc.

My team used 80x20 for their bot their rookie year in '06. They resorted to using a sledgehammer between matches to force the bot back into shape by championships (and had to retighten every fastener between each match).