This year we decided it would be an advantage to have maneuverability with the cluttered field so we chose to use our new Legendairy Octocanum drive (only about 6 lbs more than mecanum drive). We also found that being able to lift yourself up a ½ inch helps for going over and getting off Frisbees. Also lifting yourself up half an inch makes it really easy to design a 10 point climb.
As for the four bar, we decided it made it easier to adjust the shooter angle, reach out to pick up, and also allowed the movement of the Frisbees to be a straight path (not having to move the Frisbees around in a curve). I found
this to be especially useful.
Alexander Kaplan
Co-captain and Lead CAD designer for Team 1086 Blue Cheese