I've spent many years playing real B3's and the last two playing the Nord C1. I think the Berhenger pedal matches up very well to the 'real' B3 pedal. Unless you plan to constantly go back and forth between the two, I would say, stop over-thinking it and just get used to it. The concensus among actual Nord C1/2 USERS is that the Berhenger pedal is the closest in 'feel' and range. Personally, I never even think about it, and I'm sure I would if it varied too much from the real thing. At $25, what do you have to lose?
chas
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"Faith means not wanting to know what is true." [Nietzsche]