The link to Team 2809's tutorial on reversible bumpers.
http://kbots.files.wordpress.com/201...ble-bumper.pdf
We could literally change colors in 10 seconds. The reduction in stress among the students and mentors in changing colors between matches was dramatic compared to previous years. Also, you don't have the second set of bumpers taking up space. We have left the bumpers on the robot all year and never worry about them getting lost or pins lost.