[protoserge]

I'd recommend "running what you've got". If you can get an extra CIM in there now, do it. Swapping gear boxes is not a trivial matter and may cause you to miss most of your practice matches (which you'd need to debug your new setup).

If you are confident enough in your ability to swap out the gear ratios, that may be beneficial as well. There are many teams running single speed gearboxes out there and are having a very successful season.

What are the strenths of your robot? What are the specs (dimensions and weight). Do you have a photo to help demonstrate the steps required for swapping the transmission out?