I've owned the V10R Ti+ for about a year now.. I stopped using it about 2 months ago because the control ring is unserviceable..
Just an FYI, I think, the control ring all of the VR series of lights is a very poor, cheap design. There are no spring detents, there are no rubber seals, basically the ring's friction is controlled solely by heavy-duty grease. After about 10 months of normal use (maybe once/day) the grease has worn/migrated out/evaporated leaving absolutely no friction, the ring just moves about freely.. Since Sunwayman decided to use some very unfriendly lock-tight on the threads I can't even get the thing apart without creating some special jig to hold it, while heating it (possibly discoloring the Ti in the process) and possibly damaging the LED, to get it apart, only to find out that no one yet (AFAIK) has found a suitable replacement grease.
Never again. $200 for a light that lasts less than a year - no way... Very poor, cheap design for such an expensive light.
I didn't vote for either because of this issue.