I am also a very big fan of the JetBeam flashlights, having M1X, RRT-1, RRT-2, Jet-III M, and Jet-I Pro v3.0. All have textured reflectors, and except the M1X, all have R2 in it. Beams are really exceptionally good for a R2 binning and I could not be happier.
3 weeks ago I got the info from my dealer, that JB come's out with XPG-R5. First, being enthusiastic, my heart was laughing and I thought about all the money I will have to spend the next future. But then I thought about it again and came to the conclusion, that I will stay with the R2, simply because I am fully satisfied and R2 with textured reflectors gives great beams AND throw. What I did was to buy the Jet-III M with R2 and textured reflector, as long as they are still available. I am not willed to sacrifice that for newer binning or slightly better energy-management or a few more lumen which will hardly be noticeable in the field.
I love my Jet-I v 3.0, the minimum low is low enough for me and this light serves me well since I have it. Generally driven with LIR 14500 it is outstanding in performance and should the situation arise where I run out of energy I put in an alkaline which are widely available for peanuts, I will be happy and enjoy life!