dave571, what do you recommend for total? I will try adjusting the slots. When I loosen the torx screws both slots move equally correct. I forgot to add something in my post. Why does the timing mark on the balancer move up and down very quickly when above 3500rpm? Under 3500rpm the mark is steady. I am using a snap on with dial adjust. I was looking at the equus with dial advance or digital. Should I spent the extra cash and go with the digital with rpm display. My wife is getting tired of setting the rpm in the car. Thanks for your help