Hmm. Can you look up the tune on your fox, and then get whoever supplies your RS shock to match it? Put the 4 letter code where it says '4 digit code' here:
http://www.ridefox.com/help.php?m=bike
So my shock says CMY7, I get back from fox:
2014, FLOAT-K F-S, CTD-Adj BV LV, Liteville, 301, 7.875, 2.250, 0.6 Spacer, VTM, RTM, 175, 16
Up till spacer it makes sense. I *think*:
VTM = velocity (or compression) tune medium
RTM = rebound tune medium
175 = boost valve pressure?
16 = ??
I guess you could call up a suspension tuner with these numbers and get something similar in the RS?
Been tempted to try out an XF vector air, since a while ago I realised my CTD shock really doesn't need C, or T after fork upgrade and adding a bigger spacer. Not tempted enough yet...