Hi John,

Yes those are cut down Nelson arms, or you could just have them cut yourself, my Dad makes a similar part for his buddies on a CNC mill.

Jerry does not make those anymore, but he makes those neat clamping arms that you have in that picture. I would prefer double truss that use that clamp, but he does not have those..it is not TOO bad cause those wheels are pretty thick, and my servo arms are very short. I think maybe SWB or airwild make the clamping arms as well.

Just to back up, I agree with Mark, having the balance weight out on the end, and driving from near the root is not good. If the surface is not stiff I would think you could cause more troubles than you fix, but I am not a rocket scientist like Rocketman!!