I just read about XP-P over on Reddit r/flashlight and thought it was a typo for XP-L. Looks really interesting. This is precisely why I’ve been hesitant to jump in and just buy whatever light seems to tick all the right checkboxes. The progress seems to be in a massive upswing. I’m thinking of something like an L21B to tie me over now with very little investment, then spring for something more “serious” as the thrower LED progression battle enters the next round. An XP-P at 5700k perhaps?
I can’t recall the reference exactly, but going from 1000 lumens to 2000 lumens isn’t double the brightness as perceived by the human eye. On top of that, mounted optics and tint can also alter perception. For real long-range throwers, I don’t see hi CRI as a priority… because that can definitely alter perceived effectiveness of throw with respect to the ambient light of the environment (daylight, to dusk, to pitch black). A warmer tint is not very useful in ambient daylight conditions (searching in a building with windows, examining components of a car engine, etc.). So a cooler tint, around 6000k tends to be “all purpose”.
Jon_Slider explained it nicely, HERE.