I have used these and they are very good indeed.
I chose to take them off as they seemed to develop a little slop as the hinge pins wore the holes, but they are fine really & I keep them with me incase I go somewhere which is a bit hard on the cars.
I have found the recent batches of Losi graphite wishbones to be very strong, far stronger than they were around 12-18 months ago, I can't remember when I last broke a wishbone.
