I'll probably regret this , But its not necessary and most cams are ground so when the dots are lined up they are set at the correct intake centerline. Out of the hundreds of cams I have degreed working at West tech I have never had one be more than a degree off. Degreeing is basically just checking the cam phasing against the cam card, unless you are trying to advance or retard it for a certain power range. Then you would be setting your intake centerline to a desired crank degree.