I dont know jack about any of the kin line really. Whats the basic 4? I also love the profile on the ash-1 but no way am i ever gonna drop 4 bills on a blade, ive come to terms with it not ever happening. That and the fletcher BAMF id love but way to expensive. Even the RMDx is over my budget but im pulling strings. The only kin knives ive owned was the swamp rat M6 and the scrapyard 511. I got a yard guard coming monday from a trade but that will need to be sold to fund the RMDx purchase. I dont dig the handles on the sykcos, but i loved the m6 so im thinking ill like the rmdx