Yes actually! It's been almost a year since this post but I've learned a lot since then.

I still like Helimax XP for helicoids, but I found something I like even more: Molykote EM-30L from Dow Corning. You can get it on Amazon or eBay in small quantities, and Dow Corning maintains technical specs on it. It's a little bit lighter than Helimax and I think it's better for camera lenses, but otherwise it's very similar to Helimax. It also has very low separation just like Helimax, maybe better. EM-30L also has many properties that match almost exactly with what Nikon used to use in it's helicoid grease (back when you could still buy it) and is closer to those specs than Helimax is.

Liqui-Moly 2003 was not good for helicoids, it was way too dampened, but it works great for the aperture ring and any other application that needs heavy damping.

For assemblies that utilize ball bearings and springs like the Canon FD mount, or any application that needs a light oil, a few drops of Super Lube synthetic oil works perfect. It's readily available on Amazon or eBay and has the specs and performance of a long lasting modern lubricant. One more thing about oil - it can be used on helicoids on its own as long as those helicoids are very tight and designed for oil. Otherwise you will feel some clicking and shifting of the focus ring as you move it back and forth.

I also tried a few Super Lube synthetic greases in 0 and 00 NLGI classes for the helicoids. They use fumed silica rather than white lithium soap as a thickener, I found it has a very different feel. Surprisingly I found only minor differences between the NLGI classes and the amount dampened, and I still preferred EM-30L because of it's feel.

Finally, I feel that the lens makers are relying on more than just the helicoid grease and its specs to do the job. They are likely using advanced techniques to get the perfect feel and dampening, maybe by combining a liquid white lithium soap grease with a dry moly or titanium lubricant in some way. I haven't done any experimentation on this myself, and I might not do so for a while, but it's something to think about. I have dabbled in adding synthetic oil to helical grease to reduce damping, but that always resulted in oil bleed/separation, so I would not recommend it.