[QUOTE=Rad;853951]I can't tell from your post if you have ever done a valve adjustment using the arrows. I have done it that way for years and it is very easy and simple and nothing other than the valve cover needs to be removed.[/QUOTE]
+1. arrow is totally visible, and you're removing nothing extra beyond what you have to remove to do the basic adjustment anyway.
(fwiw, i used to be a timing plug cover remover myself. until someone posted on Pelican about the the cam arrow. i tried it, said "wow, that was easy" and have not looked back since.)