Got the SuperCapacitor..
It's a tight fit on the XL.. At first it did not slip on the bowl at all. Appeared as if the teeth were the same diameter as the bowl's diameter. Had to ever so slightly push a tooth with my finger.. just a little pressure on one or two of the teeth with my thumb.. not bending it at all, just a couple little pushes here and there - it now slips on and off the bowl with ease. Doesn't seem to go down all the way without pushing it down with a little more force for that last millimeter and the tightest fit. I know it should not be all the way down as far as it can go anyway - it's easier to remove if it's up a little bit..