ORIGINAL: choppersrule
Vic,
Believe it or not, the black isn't from any type of pin stripping.(Spelling?, don't know, don't care

)
It's from a black permanent MAGIC MARKER.

Also, they do make paint sticks/markers that are just great. A tad expensive, for what you get, but works very well.
Dave
I figured since you got access to all that NEAT car stuff (doublesided foam tape, and such), you'd make use of it (LOL).
The annoying slight tail bob problem. Changed the rotor head, it was still there. Made up a new batch of spindles (very good tolerences to the bearings) and installed one...still there. Took a dremmel with a carbide needle point grinder and opened up the rubber "o' ring enough that the spindle passes through it with little resistance (while in the rotor head), and adjusted the spindle nuts out 1.5 turns. The slight tail bob is GONE. Improved performance is like 100% better. I didn't want to ship a heli to a buyer that had problems, I'm not like that. Both HBKII's have been test flown and are good to go to their new owners. C'mon MX-400...get here.