My Tech and I are replacing the Locking nut and Edge Pro on my Prestige with an Ebanol shelf nut, and Non Fine Tuner Floyd.
The Trem fit in the Edge Pro cavity perfectly. The quality of the Trem is top notch, very solid, made in Germany.
We did have to shim the outer four strings with standard floyd shims to match the Profile of the Prestige neck of 430 mm.
Waiting on Ibanez/Gotoh locking tuners to arrive, (from a Joe Satriani fixed bridge model).
Much easier to use, quick to set up, and tone has more low end and mid.
Double Lockers seem to give off too much of a high end tone to be a truly diverse guitar.
On the other hand, IMHO, you won't find a better DL system than the Edge or Edge Pro,
but I don't like the newer Ibanez systems at all.
The new Charvel Guthrie Govan model uses a modified version of this bridge. The first prototype used a Gotoh 510, another a Schaller Vintage, then OFR-NFT during a tour and 2014 Charvel catalogs, but the guitars that finally shipped in 2015 have a slightly modified Trem, no Floyd Rose embossed on plate, and a different bushing system connecting the bar.
Ill post a more in depth review after a week of letting her rip.