Ok I tried the Dual PVS-14 system earlier this year it was nice in alot of ways having NV both eyes helped alot to move through rugged Terrain and trails. The bad part was its a heavy setup and after about 1 hour my neck feels the weight even using helmet counter weights.I went to the ANVIS-9's with Filmless tubes much better dual tube system the helmet balance is better,weight is much lighter I can wear them for hours, and performance is unreal even on pitch dark nights the image is nothing short of amazing. After many nights of running around with the 9's I have realized the dual bino system works best for me over a single Mono helmet setup in fact I hardly like using my PVS-14 single anymore. Now I have plan on adding a second Bino system to my gear and am looking for something very rugged this time(The only complaint on the 9's is they aren't super rugged design wise) and good balance weight wise on my helmet is very important. I have been looking at the BNVG,PVS-15, and 5050 and wondered if anyone owns these units any info good or bad would be great on these systems. Thanks!