Consider applying a couple of 4x4 planks upright beneath the floor (in the basement/room underneath the room with teh turntable). If these are measured correctly so that they barely fit (you have to kick them into place), they can solve a lot of the footfall issues.
I opted for a wall mount and found it easier to set up than I expected and I've no issues.
I opted for a wall mount and found it easier to set up than I expected and I've no issues.