We recently discovered that the triple tree had an inherent weakness to them which may explain why most of them have a bent top plate. The square leg holes do not and can not pinch the legs hard neough to hold them in place as well as they should. hence the legs transmitted movement to the top plate bending it. We added a stiffener under the top plate (after straightening the top plate). I discovered this problem but Dave Brackett our friend and AEE engineer figured out why it was doing it and the fix for it.