Does anyone here own one of these or have any experience with one. I know every account of every ps-770 owner I've ever seen swear by them. Also for those in the know.... Whats the deal with the different head systems on these two. Near as I can tell it kind of looks like the 270 uses something like a micron style head but with an outer nut instead of the knurling and the 267 is using something resembling the hi-lines. I know a lot of these have compatible parts interchange with Iwata but does anyone know the specifics for these two. I'd be especially Interested if @DaveG has any observations even from just looking at the photos.