Well, its all good in trying to increase the ROM for GH joint movements, i find that to be the easiest and quickest movement to attain using whichever technique.
The main deformity comes with the action of supination. These kids tend to always maintain a pronated forearm and getting the action of supination has never been successful for me. i have tried electrical stimulation of the biceps, supinators, passive/active-assisted ROM, contract-relax, even PNF patterns to try and get that movement.

Anybody faced the same situation?