Spline lubricants have been discussed ad nauseam over on the Airhead site for years. Major Airhead wrenches like Robert Fleisher (Snobum), Oak Oaklelsheen (sic) and others have done some fairly significant analysis over some time. After following most of the threads, the overall conclusion I've reached is that the "magic, red" BMW lubricant is the most tenacious and effective of the bunch, followed by the Honda product.
I was fortunate enough to source a small amount of some of the "magic" lube a few years ago and on Airhead splines it IS amazing. (And we all know how important this is on an Airhead.)
IBA, MOA, ONS
The mind knows no speed limit.
'06 GT - CGM "Katie"
'84 Airhead "Rita"