Yup you can drive over your vortex binos and they will not question it, they just send out a new pair.
My comparison was between the original Razor's and the Viper HD. I had my Razors when I went in the store and looked through both, it was highly noticable for someone who wears glasses. The glasses may have also been a factor in reducing the FOV as with the Viper's you can only screw them down so far and they have a lip between the glass and the top of the cup. With the Razor's they were flush, so I decided how high I wanted them (that was a pain as well and had to get rubber o-rings to put on it to hold it in place).Small paper towel roll?
I don't know about that. The Viper HD 10X42 has a 315' @ 1000 yards FOV, while the Prime has a 340' @ 1000 yards FOV. The Prime has an awesome spec, but the Viper isn't exactly narrow. The Nikon Monarch is running 288' @ 1000 yards. Now that is narrow.
Of course, the Talon HD bests the Prime by 8 feet with a 348' @ 1000 yards FOV.