Call k-tech and don't waste time waiting for answers here.
how heavy are you?sag should be @25mm with rider.damping is up to you. 8.5W oil seems pretty heavy duty!
Seriously, they're the experts and best placed to advise on their product as fitted to the Gen 1. You should ask about air gap
imo 9nm is a little too soft for your weight. my little suspension website says 0.999 kg/mm is optimum spring.
mind you this is the same ktech who sent me 2 differently wound springs in a set.
So got an update from k-tech -Static Sag - Ideally one should check the sag with and without rider, 25-30mm without rider and 35-45mm with riderComp & Reb - set the compression adjuster (bottom) to three or four clicks out and the rebound adjuster to eight clicks out.Will have to measure the sag over the weekend, but the above comp setting is nuts. At stock of 6-clicks out its too harsh as it is, but their reb. setting is only 1-click softer than stock.