For you guys who have "gone before" and installed a SJ Rotary Cowling, did you find that the ring cut out on the top was actually set back compared to the shark mouth intake lip on the bottom?  I went and had my cowling cut out virtually perfectly on the firewall side to give me a uniform 3/8 inch gap between the cowling and spinner and then I happened to pull my IV0 prop through a rotation and it hit the intake opening!  Since everything I have ever read says to adjust your cowling to the spinner back plate I couldn't believe they built this cowling with the intake sitting out further than the front top opening...

 

Doug Lomheim

RV-9A; Preparing to to cut the aft side of the cowling some more...