After doing crown in several rooms with the Kapex, the angle finder and lasers work great together. What is missing is a micro-adjust on the miter angle to achieve optimum results. The bevel adjustment has one, why not for the miter.
I agree, a micro adjust for the miter would be great. In the mean time I keep a few small pieces of paper, business card and some thin P-lam near the saw which I use to shim the work at the fence.