I must add that over the past 10-15 years I have seen the average sport guy pay less and less attention to setup and trimming. IMO trimming is a lost art. Even here on the forums, advising guys that the issue they are having is easily fixed with a little tweak here and there is becoming a futile task. Allowing gyros in AMA pattern may very well end up a good idea and then the FAI guys will need to do without.