A couple of years ago my centre stand started twisting and, rather than replace it again, tried welding the fracture and bracing the corners.
Unfortunately I have lost the photo I took of the result, but recently the bike has been leaning away from me as I try to get it up on the stand… a sure sign that it is failing again. You can see the new fracture below (and can just make out the triangular braces I'd welded onto the front side).
Yesterday I welded up the crack and added a large brace right across the back… probably should have done this last time.
OK, despite some tidying up with the angle grinder and a layer of black paint, you can tell my welding is piss-poor but it seems to have done the trick for the moment.