Here is the reference point!
It's a SL2 with more high end grit and right smack in between the tightness of EG5 and SL2. It will not give you any reference against the SL or the 3/4. They don't have the same circuit. The board may be the same but the parts are not.
The best way to reference it is....SL2 stock in slot one and SL2(GnR) slot 2. Use your foot controller for a/a and b/b.
Oh ya...knobs at 12 and gain at 12, master at 12. Personal setting will make it less effective to hear and judge the change. We do the same thing when evaluating other modules. All knobs at 12 presence and density at 9. Best way to really hear if there is a difference in the modified one versus the stock one! No mirrors involved. You have all had the education of hearing the bright switch work extremely well when the gain is turned down and not when the gain is up. To truly evaluate a module and it's change, you need to gain it down.