The best "original" Floyd Rose I ve tried (and have in a couple of guitars) is the Schaller.
I ve had a
Floyd Rose Pro on a heartfield I used to own.
None of them comes even close to the Edge, or the Lo
Pro edge. This tremolos feel better, perform better and look better.
The SL3 is a good guitar, and the Jackson tremolo JT580 (I had one in a PC3) is not bad. Just as any "original" kind Floyd Rose it doesnt even come close to an Edge or a Lo Pro Edge.
The only tremolo that, to me, feels and performs better than a Lo Pro or an Edge is..... guess what? Another Ibanez design, the ZR.