So yeah, 5mm shorter at the eyes dropped the BB 13mm and kicked the HA out enough to detect DH improvement. Although 5mm shorter, I've yet to use the full travel of the shock. BTW, OE shock off a Trek.
I feel lucky that I found a lightly used 7.25"x1.75" RP23. Not so common a size.
Anyway, perfect tweak for the 650b conversion.
Results 1 to 2 of 2