Pistons: The pistons are 2" bore, 2" stroke...I don't think the rod will bend, but we do have a backup. We ran in to the mesh full speed with the caster deployed, no damage!
The arm DOES fold down to go under the bar. As long as our light is legal (fingers crossed) we should be limboing.
Regarding the name...We are sorry! It's pretty hard to check for duplicates, though (a search for spike turns up a few unrelated things in CD

). Fortunately we are not attending the same regionals. Funny, though, we thought about going to New Jersey. Don't worry, we change the robot name every year.
Eric.