I must have got one with the perfect alignment of tolerances, because mine is solid with no noticeable movement. I was actually somewhat worried about that aspect when ordering but very relieved when I got to play around with mine. Thought I was going to need to order a Wiebad mini stock pack as well, but the Bravo piece is pretty damn comfortable for me.
I must have lucked out.
The one I got for my wife works great as well. Much better than the ones on my McMillan stocks.