Yeah, I have never been fond of truly proprietary parts.
By the way, I had purchased the OFR from Ed Roman. The price and service was good, and, per their request, I had specified the guitar brand, nut width/string spacing. They sent an R3 which didn't fit. I contacted them, and they allowed me to exchange the R3 for an R4, which they said should fit.
They charged me $10 to ship the nut to Michigan. It was laying loose in a 50 cent padded envelope. Of course, the R4 was too tall as well.
After a LOT of searching, I found out some more info. You guys might want to keep this info, because it was not terribly easy to find.
It appears that the stock nut is very thin and pretty flat. Here are the specs for Floyd Rose nuts:
R1: narrow: Width: 1-9/16"; Height: .225"; Spacing: 1.30"; Radius: 10"
R2: standard: Width: 1-5/8"; Height: .225"; Spacing: 1.37"; Radius:
R3: wide: (narrow string spacing for bound neck), Width: 1-11/16";
Height: .275"; Spacing: 1.40"; Radius: 10"
R4: wide: (wide string spacing), Width: 1-11/16"; Height: .275";
Spacing: 1.43"; Radius: 10"
R5: extra wide. Width: 1-3/4"; Height: .275"; Spacing: 1.50"; Radius:
R6: R1 with bullet nut relief. Width: 1-9/16"; Height: .225"; Spacing:
1.30"; Radius: 10"
R7: R2 with bullet nut relief. Width: 1-5/8"; Height: .225"; Spacing:
1.37"; Radius: 10"
R8: R4 with flatter radius. Width: 1-11/16"; Height: .225"; Spacing:
1.43"; Radius: 15"
This website has a good selection of the nuts, and it was my first clue that there might be a Floyd Rose nut that can replace the Ibanez nut:
When I measure the stock nut, it appears that the R8 is the right one.
What I am annoyed about is that I had no idea that there were so many different nuts.
Ed Roman only shows a few, and they did NOT ask for specific thickness, nor did they note that my Ibanez (they actually build Ibanez bodies and necks!) might require a less common nut.
Further, charging $10 for shipping is quite a rip-off.
I e-mailed Ed Roman, requesting another exchange. I will also request free shipping this time, due to their incompetence and prior overcharge.
Live and learn.