However, if it's because the throttle pulley is oval, not round, and Fred's shim method smooths out the transition between small and large throttle openings, I can see the logic of using the shim, up to the point of putting, as Warchild puts it, FOD in my throttle area.
It is and it does. However, even though there's no need to start up the religious war again I will say that I too have spent some significant portion of my adult life fearing and fighting FOD but I was (and am) very comfortable with my Fred Shim. The wire is NOT coming out of that pulley without a prolonged battle with some needle nose pliers.
Those that have not tried the shim are of course free to continue to bash the idea. However, it makes a pronounced positive impact on the way my '06 works for me. That plus having the throttle cables properly adjusted and the spring one loop unwound has produced a very smooth and linear throttle response that I'm very pleased with.
