Is it possible to remove the standard factory seats without unbolting the runners - do the seats slide off the runners in some way? The bolts securing my runners seem to have allen key heads & are well rusted & don't want to budge.
I was actually thinking an angle grinder with 2mm slitting disc to cut a slot in the screw head. A large straight blade screwdriver bit in a socket may well shift them. Also the head from the grinder will help release the screws.
