Drifting a bit off-topic, perhaps, but this thread hasn't moved since I was on here about a week ago, so...
My "newest" light is actually my latest Malkoff body(MDC 123) and newest li-ion batteries, both 2021 purchases, paired with some of my oldest Malkoff parts-an original VME bezel from 2009 and a M61N from 2012.
No bells or whistles, but "regulated" output that's probably similar to a current M61NLL due to running in DD on one of Keeppower's constant output 3V R123s.
Much as I sometimes appreciate the multiple modes of the MDC head, and of my Zebralights, I thought I'd go back to a single mode light for a bit "just to see", and have to admit I have no complaints. I'm well accustomed to using a light with only one brightness level for a wide variety of tasks, as that's what I do at work, where the vast majority of my flashlight use occurs.
Well, I've been using it at work, too, for everything that doesn't require a lot of reach, as well as my EDC.
Kinda reminiscent of switching from gears to single speed when mountain biking, it's in the "wrong" gear most of the time, but some part of your brain relaxes from not having to shift, no matter how automatic that had seemed, and it's just...nice.
What's really weird is that I carried the same M61N running on an 18650 in a MD2 as my work light for >8yrs, and have thousands of hours of use on it, yet am still going around playing with it, and randomly shining it on stuff like I've developed New Toy Syndrome over this dimmer version of the exact same thing