I have done it both ways, but have ended up starting the cast off at the beginning of the comb. This enables me to line the trigger bar up with the center of the wrist of the stock and only bend the rear final of the triggergard to line it up with the center of the stock running back to the toe. I can't tell a lot of difference in the finished rifle, but I guess I have a mental issue on having things in line when building the rifle!
Roger Sells