solution (A. convert to 6wd tank, if you have the weight this drive-train is excellent and has taken many teams to world finals. however... if you don't have the weight this late in the season.
solution (B. Slick rear wheels, if you are using the KOP wheels than you need to buy a pair of these, or contact a team from a few years ago that might have some laying around
i think that this is the plastic tread wheel, if someone could verify for me
http://www.andymark.com/ProductDetai...ctCode=am-0494
if not than any team around last year or 2008 has a set of 8 inch sick wheels.
although omni is a good option as well, i have found that putting a pair of slick wheels on is cheaper, more effective, and lighter.