[njk53]

I just bought a new ATI balancer and their tech sheet says that they machine their balancers to stock Chevrolet crank nose diameter specifications. They also said aftermarket crank manufacturers crank nose diameters can vary. I don't have the sheet in front of me but if I remember correctly, they said to hone your balancer to .0007-.0009 in. press fit.
IMHO I think a lot of the problems associated with balancers that are hard to get off are caused by too tight of a fit between the balancer and the crank and then trying to beat them on with a hammer and a block of wood.