Jesus, is there nothing that doesn't get faked these days?! I wonder if my missus is fake
Anyway, they appear to work well. I don't really get the workings of it if I'm honest but I've tried the original cheese one, rev D, rev G and the GFB DV+. The GFB definitely feels the more responsive off boost and holds boost the best, which lets face it, is the main reason we replace them because the rubber OEM ones can't handle aftermarket boost pressures.
Regarding R Tech testing DVs, didn't they mention the spring in the Rev G isn't strong enough for high boost, or something?