I have a digital pitch gauge - my problem is simple and ridiculous. Just need a mechanical lock for the flybar that is adjustable and attaches at the top, so the blades can be turned without messing it up, once perpendicularized. My efforts with cardboard, styrofoam, and alligator clips have been semi-workable, but would like something made of less ephemeral components. The SOKO unit is something I might consider in the future - still working the CopterX with training wheels. (BTW - how much does that SOKO kit cost? In reading about it, I didn't find a price, but am pretty sure that I need a lot more experience and another heli before it'd be justified.)