The F2B rules do not restrict feedback controls for electrics, but do for the IC engines.
Keith, adopting a suggestion submitted by the F2B working group to the F2 Subcommittee, the CIAM Plenary Meeting, on April 20 2013, has uninamously approved a rule change
eliminating feedback restriction for IC engines. It will be set in force by January 1st 2014.
As far as the "smoke filled room" thesis is concerned, I would like to repeat my comment to Derek from October 13:
"please consider that there is an F2B Working Group consulting the F2 Subcommittee when it comes to edit F2B rules. The Group consists of 26 active c/l stunt pilots and/or experts from 17 countries, incl. the USA. Reporting to the chairman of the F2 Subcommittee, F2B Working Group activities can be followed on: http://groups.yahoo.com/group/F2BGroup/
kind regards, Peter Germann