I've got a 6ppc mentor friend who's convinced me to try Wilson dies for the new 6br that's on the way. I think he uses a Sinclair. I see that Harrell's has one and K&M makes one you can stick a gauge on. Are these all pretty much interchangeable so I should just price shop? Any reason not to use an Arbor and Wilson dies when reloading for 6mm BR, standard case, with 105 Scenars. I've got Reddings for all my other rifle calibers.