Over the years I have had a bit of a paradigm shift. I was at one point very adamant about fixed bridge systems due to their reliability/durability. But things changed as technology got better, the DTNVG and then the DTNVS real solidified it for me as far as articulating dual tubes go. Those two systems really did a lot for the NV world and it's the systems every other system tried to emulate and surpass.