Hi all, I haven't updated my primary EDC flashlight in about a year and a half (well, besides supplementing it with a Quantum DD...) and my old Nitecore EX11.2 just isn't doing it for me anymore. I have some of the problems that a lot of users have talked about - button pushes not registering or registering as a double-tap, etc. They never really bothered me too much until it came to lending the light out to friends who wanted to borrow it. The UI is a little bit complicated to explain to a first time user, but throw in the fact that sometimes it will drop down to the lowest output when you want to turn it off, or a push-hold won't register at all, or you'll try to turn it on but get strobe instead (the worst) and I have basically stopped carrying it at all. The QDD actually manages to suit most of my needs on an EDC basis and has the added bonus of being EXTREMELY intuitive to use to a new user ("twist it more to make it brighter") but I'm looking for something for those - admittedly few and far between - times when I need a solid wash of light for more than a few seconds. It's thunderstorm season, and power-outage season, so a primary source of light in a high-need situation is what I'm looking for now. Doing lots of research, I've somewhat narrowed it down to the two lights in the title of the post. I know they're not really head-to-head competitors but I like them both for different reasons. I love the M11R's UI, which matches the "twist-twist more" simplicity of the QDD, but I don't absolutely love the form factor, and it feels lame in comparison to infinite variability. I know the RRT-01 somewhat answers those concerns, but it's pricey. The ZL gets a lot of lumens out of a much more attainable battery, has the USA-based company thing on its side, and seems to be pretty ubiquitous in this community. It doesn't have the same instinctive UI however and isn't as lendable to a friend for that reason. BUT: I submit to your knowledgeability, beloved EDCF, and would love to hear your thoughts on these two lights - which, I know, aren't really easily comparable to one another. Feel free to throw in another option in the up-to-$75 range!