On Tues afternoon Chris and I drove up to Advanced to see their facilities and talk about the avionics and panel (I have already purchased the carbon fiber one from Aerosport). We discussed how we can accommodate all the required switches for the Rotax 915 that I am planning to install. I also picked up the Dynon ADAHRS so we can install in the fuselage. In talking with them, and based on what other S21 builders are finding, I eliminated the separate magnetometer.