Hey so I have decided to update my regs, and have been really splitting hairs between these two set ups. I was planning on getting two xtx50's with a DST first stage, and miflex hoses for my regulators set. The diving I do is mostly UK based, single tank, but I do plan on twinset/sidemount and cave diving in a few years. I was about to go with the xtx50's when I realised I can get a deal that gets me 2X xtx100s and a FST first stage for the same price but with rubber hoses. From all the research I have done, the two regs perform the same and the only difference is cosmetic, however a lot of this info was 10 years old. The advice I am looking for is, is there any performance difference between the regs? How does the FST do with hose routing for sidemounts/twinsets? I feel like it would be crazy not to buy the "More expensive" model for the same money. But the xtx50/DST seems to be the trusted model among a lot of divers.