Yup you can drive over your vortex binos and they will not question it, they just send out a new pair.
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.