HI. I own a Slate 2, had for about 4 months now. Very stiff. I ride both street and Natural but I am not a basher, but had few bad crashes where I hit the frame but not too bad. I am not big fan of massive drop gaps too. I would say I am an OK rider too. I progressed so much with this frame as well. To me Kortz 2 is way too light to have it as a everyday bike! Just in my opinion.
My set up:
Full HS33 no booster, braided hoses - brake feel very solid!
Try-all forks
FFW
Doouble walled rear rim with rain king, need a grip!
All brake clamp bolts are TI! - not sure if it makes a difference.
Bike is about 9.2kg but it's light enough for me.