I have played around and experimented with several different lubes and grease in rotary lights. The RRT-01, V11R really are not that finicky about the type of grease. As long as it does reduce friction and has more than a medium viscosity for damping. Even the cheap XY-2 damping grease will work good in these. The aluminum rotary’s will have several grease’s that will work fine.
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On the titanium version rotary’s is where things get tricky. What works good on the aluminum version may not work good at all on the titanium version rotary’s.
I tried several lubes and read up on all the suggestions with past experience, then I started searching for speciality grease for titanium and stainless. Stainless has some of the same Galling properties of titanium. What I found was that almost ever lube, grease out there to prevent galling of titanium and stainless used PTFE (Teflon) as a ingredient. Teflon is white in color and can be purchased in powder form to add to about any oil or grease you wanna try. https://www.amazon.com/Runaway-Bike-PTFE-Powder-Teflon/dp/B00W61ET9E
You ever cook a egg in a non- stick frying pan, Yelp Teflon (Dupont PTFE) coated pan. That’s another subject but you know how slick they are.
It is also the main ingredient in “Slick 50”.
The Tef-Gel works really well for a smooth feel ring but it has a high viscosity, so too much and the ring becomes slow to turn. To much damping.
The Tef-Gel is white in color, probably because what I think is a high concentrate of Teflon, hence the name Tef-Gel.
The Munky Spunk also is whitish cream in color, pretty sure it has Teflon in it, since it is special formulated from darksucks for titanium threads and prevents galling a Teflon trait.
What I found was Teflon was the key to a good smooth feel control ring in titanium rotary lights like the TCR-1 and V10R but more so with a used TCR-1 were some wear has already taken place.
The very best recipe I have managed to come up with to date is about 60% munky spunk and 40% Teflon powder mixed in. Very smooth feel (no grittiness) with medium viscosity for a slight damping of rotation. To me its about perfect. Going a little higher in percentage of Teflon starts to raise the viscosity and the damping but very smooth feel, just harder to turn.
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When I took apart my last older model RRT-01 I made sure to pull off some of the Jetbeam factory lube and have a look. They used a clear white grease. That doesn’t mean its Teflon based but it makes the possibility higher. I did ask Jetbeam one time just what did they use on these rotary lights but they never got back to me with a answer.
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As I have modded my rotary lights I try different things every time I got one apart. I purchased some of the “Finish Line Extreme Flouro” which is suppose to be a spin off of Krytox (Dupont) that I will try in the next one I take apart. I’ll try it by itself then try it with Teflon added to see if it improves. Every lube I have tried improves by adding more teflon, the Tuf-Gel doesn’t need anymore. It already has a high concentration I think, It would get to thick to use anyway if I did add more.
I’m still searching to see if anything is better in titanium rotary lights but right now the king is Munky Spunk with about 40% Teflon added. From everything I have tried off the shelf Teflon is the key for smoothness in titanium rotary lights. I would be very interested to hear how adding Teflon powder to some of your favorite lubes, grease works for you. The aluminum versions benefit also from adding Teflon but you can really feel the difference more so in the Ti versions.