I'm just sending mine back to AC. Not even topping my truck out with the eccentrics maxed got me within 1.5 degrees of spec. We even took out the bumpstops and raised it, not even close...

With the Calmini arms, the alignment was dead on with a full range of adjustment available. No fooling around, no calls, no custom arms to be made, they just worked. The Calmini arms are much more consistent in their manufacture. They looked dead on when compared to one another. The AC arms looked (were) different.

After my experience, I would recommend the Calmini over the AC any day. When the pricing is that close why bother with the hassle?