I know the Ti's are 12 degrees each notch. I usually run them at 15-18 degrees timing, and Ive also heard the Kr's are also on that same line, but closer to the 15 degree mark. I got a Orion Core that has been sitting forever and am finally trying it out, and I like it, but I dont think Ive found the sweet spot for this motor yet. I love the Ti's, and I hope the Kr's are a step up from them. I just got to pick one up.