Well that would be all nice and fine to do JR but there are those CD's who may have preferences leaning toward that type of stuff and let it happen anyways or really dont care but will get an overwhelming number of 3D guys go ahead and back him up thus nothing will get done. If we are to leave safety issues up to the CD as you state then I guess (heres a can of worms) we should leave weight limits for prop and jets, pyrotechniques, autonomous flight all up to the cds as well. As you can see those are also safety concerns and the AMA has regulated them and the CD is to enforce them thus this is exactly something the EC needs to regulate as a major safety issue and the CD should then enforce it. I dont think it is much to say no #D maneuvers at an open to all event due to flight paths ans safety concerns and keep them maneuvers at events specifically for those type of maneuvers.

Joe