BTW, willhutch, out of curiousity, which is the brand of your congas?
To answer Greensail's question, I like to play with 3 drums : 11" in the middle, 11,75" on the left and 12,5" on the right. Classic positioning. But for space reason, I keep a pair in my bedroom (11,75" and 12,5"), and another one (11" and 12") in the attic just above. So if I absolutely want to play on 3 drums, I have to bring one one floor lower and I'm getting lazy... So I mostly play on 2 drums nowadays.

...which already gives me enough to work and practice.

I often even use only one for warming up.