G'day Chief Delphi!
I woke up this morning and read the team update for R21. My first thought was this didn't change anything, two layers of fabric, and two colors. After looking at our team's prototype reversible bumper, (based upon this design:
http://www.youtube.com/watch?v=BUDMB-aiBpo#t=29 ) I realised it has 3 layers on one side of the fold and 1 layer on the other. We have already shipped our real bumpers that follow this same approach.
It appears to me that the new wording of R21 inadvertently makes these reversible bumpers illegal. I'm sure FIRST's intention was not to make reversible bumpers illegal. We assume a lot of teams use a similar approach to bumpers. If your team does, how are you planning to accommodate this update?
G'luck at the competition! We can't wait to see you all there.
We live for those eureka moments. Whether we win or lose competitions, it's those moments when a student's idea makes something just "click" that will stick with them and influence them to become engineers. - ToddF [more] 
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