I have an update on the sticky tail pitch slide. I applied a small amount of Tamiya AW grease and it slides very smoothly.
AW is basically Anti-Wear grease and it is very sticky so it will not fling off. Also a very small amount is required so it will not atract dirt.
I use this on all my high rpm applications.
http://www2.towerhobbies.com/cgi-bin...?&I=LXWB00&P=7