Ok I know I am going to sound like an idiot but I really don't want to screw this up. I took my plane to my lhs guy and he told me to measure the center of my firewall. well I did this but it is not exactly center in relationship to the top of my fuse. I know I need to measure the tips of the H stabilizer to the center of the fuse by the firewall but since the fuse is curved how do I get this center point. I feel like this should be easy but I am really confused and know matter how I measure it just dos not look center please help.

Rob