I'm sure the next one will have to do some with weak signals right?
From the top of my head you will have have quite a few Radians at Flite Fest 2016. Maybe if we assigned patterns for people so they can identify their Plane.
1. Chris - Suzuki Yellow Stripes
2. Andre - Red Maple Leafs on the Wings!
3. Wayne - Checkered
4. Mike - Roundels!
5. David V I'm sure will find one - Yellow Crowns!
6. Mike from KC - Blue Stripes or KC in block letters
Just an idea. If you fly FPV that will solve issues too.