I think I don't agree with you re leeching. It is very much like match
racing sailboats. One guy looks for advantage, the other guy covers. Be
in the top 2 at a good close race and you will see what I mean.
All this said, the Rules Subcommittee is very concerned with how cost
affects participation.
I did not know Flarm was not in US due to liability issues. Interesting
perspective- thanks
UH