In response to an earlier question about me saying every aftermarket shock I've bought is junk, in fairness they were not new, they lasted long enough to be old and I was foolish to buy old ones on reputation alone.
The Koni's had incompatible materials inside, and the top out washers stuck inside the cylinder. Often that part turned to goo and plugged the oil passages, mine just stuck in place. The odd thing is not all Koni's even came with that washer in them.
The new Koni seals are in, I'm going with 75ml of 10W fork oil. The valving is 2 half turns from max stiffness out of 5 total half turns available. The bike is a performance 836 with a solo seat, progressive front springs in lowered F forks, +2" swingarm, radial tires.
I hope it's good because they have to come apart again to adjust since I didn't get the top shock mounts off.