Actually we at one point replaced the front wheel with a slick, but nothing changed at all.
slick in the back would have been good, but axle is this odd hex shaft that is a real pain to switch out a wheel on it. looks like a project for tomorrow.
This whole thing is bugging me because one we switched our wheel base to just 12.5 in that thing should have spun like a top. I am just agonizing that I am doing something dumb here, similar in caliber attaching the motors wrong, but I just can't find anything wrong.
Btw are omnis the same diameter and width as the plaction wheels? Andymarks specs have left me feeling a little wanting.
we have these
http://andymark.biz/am-0514.html
and i think these are basically the same form factor
http://andymark.biz/am-0048.html, barring the .5 in difference in the hub width.