I've decided I prefer to hang them. In the pic here, I just make a plywood plate (2, identical), that slips around the wingtubes, and fits between the model and wing. Your model configuration may or may not allow for that. The nice thing about the plates, is you can then drill locations that correspond to various %mac, so you know exactly where your CG is (25% mac, or whatever.) Or if its a kit, just drill the plates where it needs to balance, and maybe 1/4" fwd and aft of that, whatever... You can then retract your gear, and check that CG. Then you can write it all down and store it with the plywood plates, till the big ol' repair job comes, and you hafta do it all over again!...