In reply to higherclimbingwales: Well, that's the centre the op went to and the one I used to manage, thats two...
Would you buy a second hand harness, not knowing if it had had many falls, I doubt it, well same goes for hire gear, if leading is accepted on hire gear the centre will have no idea if the harness has had any big falls, and if it does fail in use it's the managers neck on the line.