Agree with Josh. Plus you can just load them with 30 BBs instead of 120 - nothing to stop you from doing that. Remember, midcaps don't rattle - only highcaps do (if that was your worry).
Ah, very good point, Midcaps it is then. I think the G&G ones are 160? could be 180, not sure.
The main reason I wanted to go for something lower is it forces you to be a better player, Think more outside the Box, and gives your pistol more of a point.