Another timing inquiry

Thanks, I get the concept yet I've not done this procedure before. In other posts I have read, are guys using an actual bolt into the spark plug hole for a piston stop?
No don't use a bolt unless you grind the end like the pic. . Stops have a semi circle end. Use one or something soft to do it. Oldmanmopar is right on it. You never know where it is unless you do it. One more thing that could happen is the balancer slipped and is reading wrong.
dcc-4349737_w.jpg