ORIGINAL: aerobob
Bill - you think this firewall is a candidate for the "dowel" treatment around the mounting bolt holes in the firewall, like we learned on the Ultimate? So easy to do, thinking that will be a "good thing" to start with....
Sorry Bob, I did not see this until just now and after you got it done ,shrug>. I did not do that to mine. I just used fender washers on both sides and no problems at all and you all know how hard I wring mine out. I'm by no means a 3d monster BUT...I do loads of very high "G" stuff, more than you should ever do to a wood airframe and like the GP Ultimate both Bob and I have, it just takes it and comes back for more