They are not hard to get off , all you need are castle nut pliers,a BFH and a brass or mild steel punch .I have taken off 4 of them and all were welded on and came off with no damage.
If you still have it on at the Clinic and want it off ,it will take about 2 min
If you still have it on at the Clinic and want it off ,it will take about 2 min