My Red Baron capper makes a smaller,shallower indent. But the difference is that the bell on the RED baron is replaceable,where the bell on the black metal one isn't. Anyway,I think the bell stretched out on my Red Baron,as the caps are ever so looser than normal as to leak under co2 pressure in the head space. Typically when the room gets warm. Not loose enough to turn the cap,but enough to leak co2. Seems I've found my low carb problem. When the room gets warm,I can smell wiffs of sweet malt kinda thing.
I've ordered a super agata bench capper among other things. Should be here later today...