I think the next trick to figuring out how complex drive trains should be is clarifying which of the D/T's on Einstein (or Top25) were:
- KOP (with perhaps sprocket gearing changes or different wheels, but all else the same)
- 1 or 2-speed
- Full-traction versus omni's on the corners
- Direct-Driven
- 4/6 motor
- etc
Speeds in high gear may be interesting to see, but really those are more about what a team's strategy is rather than 'best drive train'. I suspect we'd see a wide variety of skid steer designs in the top ranks.