DG switch. Super intuitive, no fiddling around with switchology, very easy to use even when doing SHO/WHO. Light NDs are not an issue IMO for most civilian applications, and not an issue for me personally either, both due to extensive practice along with the fact that I use the X400UH so I have a lock-out option if needed. An argument might be made that it can compromise the grip a little, I suppose.

You could also try these if you wanted to: https://emissarydevelopment.com/prod...surefire-x300/