So I just got a set of 949 end links (amazing quality by the way) and a set of adjustable whiteline sway bars. I installed it all today, and am a bit worried about the rear. After installing I took it for a quiet drive around the block and got a knocking sound from the rear. I made sure that everything was torqued up, so nothing is loose. The end links come with a couple of spacers I have put the larger spacer in the rear, but it appears that the top of the end link is at its limit of movement (the pictures explain this best). I would put the smaller spacer in as well, but there is literally a fingers width between the bolt and the springs, so having that extra spacer in there might put it a bit too close. I guess what I am thinking is that say for a hard compression on that corner, would the end link being at the limit of its travel (on the upper rose joint) get damaged?

Also, question about the adjustments. If I adjust the end links to tip the ends of the sway bar towards the ground, is that increasing or decreasing preload? Or is the idea of the adjustable end links purely to keep the sway bar at 90 degrees to the gound?