Here is a great review on a set of Carbondale rims that I built to a set of I9 Torch hubs.
Biased of course but I am specifically proud of stuff like this.
"The build quality was very good with spoke tensions being very consistent and just above 120 Kgf on the rear drive and front disk sides (other sides were slightly lower because of the dish of the wheel). The trueness of the wheel is right in the ballpark for fat bike wheels at +/- 1 mm for vertical and lateral and within 1 mm of center on dish. When I went through the normal detensioning steps there were no pings or other signs of spoke wind-up. All signs are that Borealis did a top notch job building up these wheels."
Initial report borealis carbondale and industry nine wheelset
Obsession, or passion? Who am I to judge? Either way I simply love building wheels for those who appreciate quality!