They probably do shinobi! I've never used a chestrig before and I'm worried having no backplate will feel alien to me, theres then the arguement to fit an MBSS backplate to the RRV. But that makes me think I may aswell just get an MBSS and save myself a tenner?
it can but i wear it quite high as i run a pistol on my belt. run a dump pouch and radio on the back and iv got a hydration to go on which will balance it