What size of paint cup to use with the aztek airbrush

I got my Compressor yesterday been playing with it and my aztek airbrush too but I have forgot how big a 10cc cup is even how big a 7.5cc cup is.

So I am wondering since I mainly do 1/72 scale with the occasional 1/48 scale kit no bombers don't have the room what size of cup would large enough for most uses?. Would the 3cc gravity or 2.5cc side feed cup be big enough?

thanks

I think the 3cc one should be enough and you can use it as well. Just prepere more of a paint in another can. If the portion of a paint in the airbrush cup is run out you can fill it with another one.