Hi Steve, your mod looks like it works well but I noticed that the gun cannot depress below level at all. this really isn't the best result. I can see also that you lose the recoil function. I am really looking to keep the full functions but want to get away from thr troublesome Tamiya units. i want to use a servo on a few projects but need to know how people have worked around the self center issue and how too slow the servo down enough for realism. I may give Brett a shout from A.C.E.. I think he has done the mod and may be able to help.