The thing is when do you actually use that? I don't know about you but when I'm tuning an engine it's usually when the car is running on the track and then you always have the body on so you can't see the marks anyways. When I get back in the pits and have the time to actually take the body off and look at the LS needle, well then it is easy enough to see what position or I should say using a clock face, at which hour i have the needle set to. I could understand the desire to have this more if we used an allen head wrench to adjust the needle or something like that but were using a flat head screw driver lol so there is a straight line in the face of the needle anyways. I think that something like that is more beneficial for shall we say newer tuners so that you can say just set the LS to 3 o'clock and you are dialed but honestly with all of the variables between set ups (plugs, fuel, pipes, ambient conditions etc. etc.) we should never be telling people to tune like that anyways imho.