Yeah, I have 2 2s batteries. Actually 4 matched 2s for back to back runs (2 each run). Figured I'd try them for a round before moving to 6s. I'll have to have some 6s on hand for the occasional speed run with buddies around here, but my main interest is the Lake water where it's not so smooth. I believe 4s will be perfect on the chop.

Why not over 5000mah? I think mine are 65c or 75c batteries and pretty sure they are over 5000mah. Not by much but either 5500 or 6500. I believe 6500mah.
I'll have to look.

Of course you might be talking about fitting the batteries in the compartment once I get 3s on each side? If so, that's good info to know...