SRAM i-Motion 3:
The shifter pulls 7.7mm from 1st to 2nd and another 6.1mm from 2nd to 3rd.
Since all of the hubs I have rebuilt have been found at the bottom of a bin at the bike co-op, I never know if all of the parts are original or even compatible. Having the details regarding cable pull should make it easier to set up the friction shifter. My best experience was when I had the right side cable of my Pentasport set up with a Shimano RSX left brifter that worked perfectly, but that was a coincidence that I won't expect to repeat.
-Will