I'm putting my aeroworks 31% edge together and I have a question. I'm using Nelson control horn assembles formerly known as Rocket City. they are #RCL 70 Anyway, I "m wondering exactly how to install them.

I'm looking at the aileron and you know how it tapers..... well if I drill the hole for that long screw they use as the control horn perpendicular to the bottom surface of the aileron, when it comes out the other side it will not be perpendicular to the top surface. (because the aileron tapers back.

then on the top side the countersink style screw will be at an angle to the top surface. And to make matters worse they tell you not to countersink the screw head.

Can anyone tell me the correct way to install Rocket City hardware?

thanks a million