Just made a call to GPR to order my stabilizer and Randy told me they have a proto-type stabilizer that is part of the bar clamp/mount. So no bulky box on top, and you can use a normal fatbar pad. It will be the same price of the current pro kit. If you have a pro kit they will upgrade for about $150 (exact price to be determined). I think I will wait and see if it works and then drop the dough.