Impact on Crank Bolt?? To Install HB?

My balancer puller (Lisle brand) jackscrew is the same thread pitch as the internal threads of the crank. I run a big nut and washer up the jackscrew and thread it into the balancer and crank snout. thread the jackscrew into the crank as far as it will go (about 2 inches) and then tap balancer into keyway and start turning nut. It will press the balancer on without even having to hold the crank steady as you use the 9/16 hex on the end of the jackscrew to hold it steady, wedge it against the framerail if it can reach. trouble with this is you cant get a torque wrench on it unless its an adapted crows foot. 135 ft/lbs is about as tight as I can get it with a big *** 1 1/4 wrench bending down over the radiator.... you can also stuff a rope into a cylinder to stop crank from turning.
As for the aftermarket balancers that are impossible to install without honing: put them in boiling water for a few minutes and hit the crank snout with nut freeze (invert a dust off and spray the white stuff) or an ice pack, The new balancer should slide on much farther than a cold install. You can shrink a cast iron snout .00040 by taking it down from 77F to 32F, goes the other way too by heating the balancer.