Agreed. Shmupmame, with the right settings, feels most like arcade ST with all the timing differences and what not.
Having interviewed Pof previously, switching to a new emulator won’t be as simple as “select file” function. It requires a LOT of programming to make that switch happen, since the GGPO library was programmed to make it work specifically with that version of FBA.
Last time I spoke with him, he said he’s looking into several options to get Fightcade moving away from FBA, but it’ll be a long time until changes are actually implemented.