Hi Rich,

I have found that with both dual and single rotors, a little size thrust seems to help the gyro track better. Just my opinion.

6 degrees of rotor head incidence is plenty for the 6042 blades as it will fly with less but the blades come up to speed faster on takeoff. Everything else being equal, rotor head incidence sort of dictates the type of flying and attitude of the gyro. If you like to fly slow and make quick turns increase the incidence. The best way to experience this is to build in pitch control on the head using another servo. However, after you determine your preferred flying method, the pitch control isn't really necessary as it's one more thing that can fail and it adds more weight and complexity to the control head.

Solidity Factor: (Area of blades divided by disc area): Bill Friedlander can explain this better than I. As I understand, smaller is better as increasing the number of blades or increasing blade width also increases drag. It's another measure of efficiency or something like that?

The colors are what it came with except the nose and the pylon. I didn't have the same color of blue for the nose but I had some black and I had lots of gray automotive paint for the pylon. Some of my gyros haven't lasted long enough to be concerned with color but I'm either getting better or luckier.

Phil