thanks for all the advice woppie! I am in upstate NY around rochester, so it would take a long drive to get there, or here.

the only blades I have are the origonal with the weard shape. from your article, it sounds like i should find a different pair. do you, or anyone else know if a pair of 680 or 700mm semi-symetrical chopper blades would work? they auto my 12 lb chopper very well down to around 800 rpm.

if anyone is selling a set of blades that would work for the whopper, i would be interested. it would be a shame to break the origonal blades!