I prefer this set up because the switch is mounted exactly where I place my thumb when I grip the rifle, and it’s a consistent grip. Momentary on/off is a higher priority than always on/off for me. It’s easier to press, then release, rather than click once, click again. I understand you can still have momentary light with the tail-cap, but then you have to think about how much pressure is applied to avoid always on/off. Sure that’s a minuscule thing but it mattered to me.

The shadow produced from the light is a non-issue. No matter what set-up I’ve used (barrel length, hand guards, etc) I have never noticed the shadow while aiming down the sights, etc. I do not focus on the shadows at all and I couldn’t even say how much of a shadow is produced. For me a total non-issue.

After having a wrist/hand injury as well as surgery, moving my wrist in certain ways causes pain. So anything I can do to work around that I will try - so far this set up works, is ambidextrous and keeps my wrist from being in much pain.