Fred, if I understand your method, you're making a lot of work out of it. I use the pointed post method. All I do is spot drll the holes laid out on the lockplate and the sideplate. I then clamp both sideplate and lockplate to the stock. Next, I drill through whatever plate is top most with the opposite side located on the the post point. After I've done that, I flip the stock over and locate the already drilled hole on top of the post and drill the hole through the previously spot drilled location. It's absolutely foolproof and gives you a direct hole to hole through the stock.