I hadn't though of using that, good idea. I once spent and hour on just one side. Found the cone washer and hub flange had been glued in.
These days I've a supper fast method. Kicks out even ones glued in cone washers fast.
Looks great. I actually have the set of brass/stainless/plastic hammer bits. Which brand of air hammer/chisel; are you using? I have a cheapie that doesn't have enough stroke to really vibrate the cones properly.