Cam install
You will never know if your cam is timed properly unless you degree it. You could get lucky and everything ends up being machined perfectly and the cam goes in right where the grinder intended it, but too many times one of the many variables is not perfect and the cam ends up 2 or 3 degrees from where it should be. A cam installation is done correctly when it is degreed. Yes you can just line up the dots but it will always be a guess as to if it’s correct or not.