How to - Hillbilly Timing Tape

My way is MUCH easier than trying to measure .632" for 10* or just about any variant for that matter.

Why make it harder than it needs to be? It's rhetorical, you don't need to answer. :)

You posted a comment regarding my post so you will get an answer. I agree using the tab as a ruler is easy but on some engines the marks are hard to get at let alone a straight shot for a good measurement so on those cases I make my paper rulers as described for the degrees I need & turn the slit to the bottom then crawl underneath & make my marks that I need. Since I started doing that & have calipers at my disposal I just do it for any and all markings whether the timing marks are easily accessible or not (works for me)