I just did a very informal, unscientific test between TufGlide and WD40 (see my previous posting).
Last night I used TufGlide on my heaviest blade folding knife (REKAT Sifu).
Today, I held the knife, in an open position at a 45 degree angle (blade up, edge down). When I released the rolling lock, the weight of the blade dropped the blade to a little past a horizontal position.
Next I used WD40. If I now release the rolling lock, the weight of the blade brings the blade to a 100% vertical position. Plus when I open and close the blade it is definately smoother than with the TufGlide.
This does not test how long the lubricant lasts between applications, but I am going back to WD40. Smoother, better lubrication and it has been used for years to help prevent rust.
[This message has been edited by jayharley (edited 10-27-2000).]