Thank you very much! I apparently have a knack for picking nice ones :) at least that's what my friends have told me.
The only qualm I have about him being a young halfmoon is that he's already bigger than my other three bettas, body wise that is. This is what lead me thinking of him as a plakat since they usually have bigger bodies, but his fins are bigger than any other plakat I've seen. Which then this all led to my confusion. And even when he's flared his caudal goes into the 180 degrees as a HM but if he were HM his fins wouldn't have those edges and I know they haven't been bitten or anything like that, so I was thinking he could be a feathertail since he's too much for an HM and as far as I can tell Rosetail doesn't have spikes like he does.
Anyway thanks for the quick reply!