I know that Brandon Ellis uses the Hantug Floyd Rose Trem. (Dude brings the feckin' fretboard fireworks! Killer musician.) I didn't know they made a height adjustable Floyd Rose style nut!
Seems like a better idea than using shims when the slot isn't cut to a perfect depth for the standard floyd nut.
I've always just used metal shims though (.2 and/or .3mm thickness).