[Chris is me]

Here's some quick data points, since this is turning into a "talk about your 6 CIM setup and your issues with the main breaker" thread - 4" wheels, 6 CIM singles, 6.1:1 gear ratio. Never tripped the breaker, playing heavy defense and whatnot. We did not use an on board compressor and we worked to minimize all other motor load to keep overall current draw low. Since this is the same ratio / setup as the OP, I would assert that they are either running a lower efficiency drive than us, a CIM is defective, or the rest of their robot draws too much current.

Something interesting we noted with 6 CIMs this year. We noticed a significant advantage in acceleration, but more notably we noticed that our actual top speed was higher than we expected. Everyone is aware of the 81% speed loss constant for a 4 CIM drive, but our 6 CIM drive's actual speed loss coefficient was around 90-91%. We measured an actual robot speed of 13.7 FPS with 4" wheels and a 6.1:1 gear ratio - 81% speed loss puts us in the upper 12 FPS range. It's possible that more motors actually results in less top speed loss.