[StevenB]

I suggest you count the number of Einstein robots which used treads and mecanums.

Don't count on mecanums to compensate for a poor harvester design, and don't count on treads to make you immune to defense. Both will disappoint. In this game, where the field is wide open, the maneuverability of mecanums is not as beneficial as it has been in some years. You'll probably need to make some full-field sprints, and both mecanums and treads sacrifice power that you'll desparately want.