Thanks for reply. I have the d&d gray and purple. I believe the black is right in between. The purple is a hair too much for helix im running. Works well from roll.and has good peak rpm but too much pressure out of the hole and causing my sled to have slight off line bog.
Hoping black clears that up or gray. I lowered pressure to least amount on the purple and sled fell on its face up top. Lost rpm.big time but had basicslly 0 preload.
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