Gentlemen, the EAA biplane I'm buying did not have shoulder harnesses installed. I have ordered them and will soon be installing them. I have read that the anchor point can be 5 degree down to 30 degree up. Can I safely anchor them to the frame rail just behind the seat? This anchor point would be approximately 5-8 inches below the top of my shoulder. Anchoring somewhere in the rear of the fuselage would require a lot of extra work HOWEVER, if it will make it significantly safer I'll do it. Thanks again to everyone for your assistance. - Chris