I am also very interested in the Butterfly vario. I have some questions that the Butterfly people have not answered for me yet.

I fly with a mechanical vario on the T.E. probe and my 302 with electronic compensation. I wanted two independent systems and I was having difficulties with the 302 and mechanical varios on the same T.E. probe line.

How would the Butterfly work with electronic compensation? Any significant loss of functions?

What issues could be anticipated with the Butterfly vario and a mechanical vario (Winter or Sage) sharing the same T.E. probe?

Guy Acheson "DDS"