What fingers do you use when calling assists?

I use type B configuration and I’m having issues calling assists without dropping the series. I have been mostly using my thumb for S P1 and P2, and it screws me up sometimes. What are some options I can try to make this a more fluid movement?

A1 middle finger A2 ring finger.

Yeah I use the middle finger for A1, ring finger fir A2 as well. Not surprisingly, MVC3 doesn’t condition your reflexes well to move between the top and bottom buttons. You can practice switching up your finger positions by playing any Street Fighter game.

Middle and ring as well. If I need to hit an attack + assist at the same time I’ll use my thumb.