The crown stop is sweet! This was the second one I made for the Kapex. Eventually after different crown styles & sizes, the board gets quite chewed up. On this version, I decided to drill a hole on the left side of the miter scale because it's really difficult to see 45 degrees. Now I can look straight down to see any degree in the range of 45!
The light is awesome to have...when the blade is down, it does block some light on the material to the right but I wasn't cutting in the dark, so it wasn't impossible. When I'm doing crown I usually cope my left cuts which, when cutting nested crown, puts my marks on the right side of the blade (opposite the light). The project that I took that photo on was 37 pieces of 16' crown and I had no issues.