I just used the standard allen head screws. One set came with my pipes, but I also have a set of carb screws that my father got from newbonneville.com.
I have seen the extended finger screws you were talking about though. They would be nice to have if you were doing alot of tweaking of your performance settings. I would think after you got things the way you wanted them you would want to go back to the standard allen head screws.
