I had my time with the rotary and I've decided it's just not for me. Thank you very much for allowing me to handle one. I've said before, I'm a clicky guy and having the rotary for a couple of days hasn't changed that. The only twisty type light I currently own is a Sunwayman V11R. Admittedly, the HDS feels much more substantial and heavy duty compared to my V11R, but it also costs around four times as much. If twisty type lights are your thing, I highly recommend spending the money on an HDS though.
I noticed the one in the pass around has a torx screw as the stop pin where all of the photos I've seen use a simple Phillips head screw. The torx looks better, aesthetically. This should be standard going forward if it's not already.
When turning the rotary I didn't expect to be able to feel the fingers of the mechanism catch when moving between levels. It's not pronounced, but it's not smooth. My V11R doesn't have that, unless crud and pocket lint have gotten into it and then it's gritty. It's not bad on the HDS, just not what I expected.
I still think the light is very robust, but not as bomb proof as my clicky. If something where to fail on the rotary, I feel it would be the rotary tail. I think it would take less abuse than my clicky before a failure.
As with all HDS lights, the programming is top notch. Able to customize it exactly as you'd like. No complaints, nor differences, there.
Maybe it was just the two lights I have, but the button on the rotary felt more "squishy" than my clicky. This could vary from light to light I suppose, but the button on my clicky felt more like a clicky than the rotary pass around. The button on the rotary felt like it had more give to it. Not sure if this was just chance or is a result of the tails being different.
If you want to have multiple brightness selection controls for your light with quickly adjusted presets, get a rotary. I think I may like it more if the turning mechanism was towards the front of the light instead of the rear. Or even better, a sliding mechanism instead of one that turns.
As the pass around didn't have a clip, I can't comment on that. I do prefer a bezel down clip and as the rotary only supports a bezel up clip, I don't think I'd be a fan. More often than not, my light is just dropped into my pocket though so I can't dismiss the rotary based on this alone. It is just a bit longer than my clicky and that would affect pocket carry as well
Everybody has their preferences and for me, the clicky is my pick for EDC.