[yash101]

I do not know if this really helps, but my Vex Omnibot is able to climb walls (and end up flipping itself over) because it has a very high traction. To me, I think that omni wheels give a better traction than mecanum because it is pulling apart the carpet in the front and pushing it together in the back so it seems like the wheels would be a lot more grippy. Also, as I have noticed, omni is great for turning in place. This may be the size causing this, but I find that Omni is more responsive than mecanum! I can change the direction instantly and I won't have to wait for the rollers to stop coasting. However, this could be because of the robot size differences, and thus the inertia!