That's how I play FFT too. I remember having a few crazy teams like all ninjas and all samurais with different sub abilities. I have the NES, Super NES and SEGA emulators on my laptop. You're making me want to go back and play crono trigger or FF1-3. While we wait an eternity for SE to open up the flood gates.
I kinda did the same thing for FFxiv. I'm on PS3, so I bought a refurbished backwards compatible PS3 had a friend beef up the storage by 200 gigs. Next pay day I'll buy an afterglow controller and I'll be good to go.
btw try out an emulator and relive so good memories. imo the Super NES.