There are differing opinions as to "Frame Sizes". With Parker, it is quite obvious if the scooted the firing pin spacing in a 16th of an inch & took a bot off the perimeter of the standing breech they called it another frame size. Personally, I do not call that another frame size.
Many .410s have been built on what were essentially 12 ga frames by the act of putting the firing pins close together & cutting down the standing breech. L C Smith ran of ability to lower the top so they elevated the barrels higher above the action flats to compensate. Many .410s so built have a bar so wide they have almost "No Balls" left.
Personally, a .410 to me doesn't even classify as Cute, unless it is built in proportion with a teeny matching frame, but of course, that's just my opinion.
