I had to redo the entire drum assembly in my ‘69, if I ever have to do that again (regrettably unlikely) I’ll pay for someone else to bleed them. One occasion I recall ending up in another lane. Not a fun process to bleed and verify for those of us inexperienced in it.
Reason being is no modern vehicle with typical brakes can be caused to pull by any good or bad bleeding method. That isn't how hydraulics work in a brake system.