I'm more interested in why they are "over" the flange on the firewall, instead of "under", and how that works. Seems like it would leave the cowling proud of the forward fuselage skins.
Forgot to mention that the forward skin is removable per the plans on the 4 , the difference is only about .025 in the height as that I think is the thickness of the SS firewall.
Chris RV 4 #4633 N1212R
RV8 N627CS sold.Gone but not forgotten.
A follow up on the Sky Bolt base system, I have changed them for the plans hinge setup as I found it fits much better with the cowling.
RV4 #4633. N1212R