Glad you like the TNV-14 Omni 8 unit. They are latest Mil-Spec tubes from L3, you made a great choice while complementing thermal with ID first that comes from using NV.
If you're weapon mounting, an IR laser is the most effective way to keep your head up and shoot. Some tips on using your NV, is to walk a lot, especially on uneven terrain to get used to the depth perception and leaving your dark adapted eye open. With practice, you brain will be able to switch back and forth from your NV eye, to your unaided dark eye that is a real benefit running a single monocular at times.
Another area of interests you will find in the near field and far field focusing. PVS-14's (once your diopter is set as the poster above described) you will have to constantly re-focus your lens every 5 yards or so when approx 30 yards and in. there are some nifty devices that allow you to near and far field focus at the same time, one of them is this device. http://tnvc.com/shop/matbock-tarsier-eclipse-nvg-focus-enhancer/
It was developed from a few NSW guys and I really like it that gives me the best of both focus worlds.
Have fun and enjoy your new PVS-14. If you have other tactics or training questions, please do not ever hesitate to call us. We're here after the sale as well as we are trainers and educators first. Thank you MDMORROW
P.S. Next year TNVC will have a full slate of NV training courses we will announce, so if you decide you want some formal training, we will be doing some commercial courses that are open to all US Citizens vs. our on-going restricted Mil/LE courses.