The 38 super is very popular in NRA Action Pistol (Bianchi Cup) I believe mostly because it’s very accurate and easily makes power factor (120,00) without much recoil. I personally shoot a Super but realistically can’t see a big advantage over the 9 I any at all. Strictly preference for me. Factory 9’s easily make power factor also so meh. If you shot a game that requires major power factor the Super would be a better choice