I would have to agree with Brando, the Mammoth is probably the highest friction heavy oil ball available on the market and from a purely "Bang For Bucks" standpoint, you won't find anything that aggressive at anything like that price. Being from Brunswick's BVP range, you won't have to pay premium price. Depending on the distributor your shop deals with you shouldnt have to pay more than $250 to $295, including drilling.