I had to modify the supplied engine supports. They were cut at right anges but the fuselage to firewall junction is not at a right angle. Per Scott, I'm only installing the lower mounts at this time. The upper mounts will be installed once the upper deck is attached. This will make a stronger assembly than doing it the way that is described in the manual. I ran out of BID so I only was able to glass in the outside of the lower mounts. The interior will be glassed in a week or two.