[uvabrad825]

thank you all for all the replies and ideas to help.....

we eventually tried the zip-tie idea, and it seems to help a bit (since we dont have the $$$ or time to make omni-wheels).... we can turn in place with minor bouncing, and turn along a radius with no bouncing.... we put the zip-ties on our front tires, as our bot is pretty well balanced betwen front and back, and it actually seems as if the zip-ties help us climb the step better.....

thanks again!