Awesome, I've been using the 10bar (without laser) and found it REALLY easy to use on with my RX100ii setup.
When I upgraded to the D500 however, it was a complete pain, cause... DSLR. You can't view the image at the same time you adjust the snoot, and that makes it horrendously difficult.
Which strobe were you using it with, as during ambient light (basically non night dives) I found the focus light of my YS-D1 strobe utterly useless with my normal snoot. Also the dive guides missed plenty of good snooting opportunities because of that (light assistants, we all need them).
My understanding is that part of the problem is that although snoots in general try to funnel or even shape light, it does come out somewhat off centre with regards to the position of the focus light on most strobes (z330 may be a slight exception).
I had an idea for my current snoot and DSLR setup however, and that was to use a physical guide, as my focus light is crap.
If you have a poke-stick which you point out from below your DSLR, with another 90 degree stick going straight up, in to the snoot hole (or wherever the light comes out from), then you know that if you set the snoot there, and you're always at that distance, you're in the ballpark. I may try this out at home with some chopsticks and bluetack...
Edited by sinetwo, 18 October 2018 - 04:25 AM.