Regarding brake bleeding, I have done my own automobile brakes and now my airplane brakes for many years and have never used a pneumatic bleeding system. I use the system just like in the Kitfox build manual, using a simple syringe or squeeze bottle on the lower brake bleeder fitting, and an overflow bottle at the upper reservoir and just inject fluid until all air bubbles disappear, and repeat for the other brake caliper. Maybe I am just lucky, but have never had a soft brake using this system.