FR locking nut for Jackson Fusion

[Slavik27]

Hi guys, recently I replaced a Schaller licensed floyd on my Fusion with OFR. But standard R2 locking nut is too small for the replacement. Which nut should I use, R3 or R4?

http://www.thomann.de/at/schaller_locking_nut_1383_r3_black.htm

http://www.thomann.de/at/schaller_locking_nut_1384_r4_black.htm

Or something else?
Thanks in advance for the help!

[Newc]

R3. R4 is the same as R3 but with wider string spacing. R2 is for narrow nuts like Les Pauls.

However, you might find the OFR nut to be taller than the Schaller, even though they're both made by Schaller, so I would get a Schaller R3 nut.

[Slavik27]

Thanks, it is really R3 and it was simply written on the bottom of the nut.