Okay, so the intent of IMAC isn't to emulate full scale IAC aerobatic events? I'm getting confused here. From the IMAC website www.mini-iac.com (note the IAC reference there), "IMAC (International Miniature Aerobátic Club) is the organization that grew out of the interest of flying scale aerobatics. The group was founded in 1974 with 97 charter members. Their intent was to emulate the IAC, which was dominated by biplanes at the time, so the IMAC initially called themselves the National Sport Biplane Association. In 1976 the National Sport Biplane Association became affiliated with the IAC and became IMAC."

More good stuff:

"A most recent example of cooperation between the IMAC and IAC boards is the writing of our proposed Flying and Judging Guide (F&JG). Our present document is very outdated, and IMAC was allowed by IAC and further endorsed by FAI/CIVA to use the JAG Red Book as a template for our new F&JG. A big thanks to Rob Dorsey, Brian Howard, Mike Heuer, and Fred Johnson for helping IMAC Rules Chairman Ben Perreau create and check our new F&JG."

Maybe we aren't talking about the same IMAC here, so forgive me if the references above seem very basic. For sure we aren't going to be exactly like our full scale counterparts due in some respects to technology (our power to weight, though full scale is catching up, as well as power source, etc) and in other respects due to the inherant differences between flying from the ground and flying in the cockpit (different box, wind correction, etc). However, a line must be drawn as to how far we are going to allow ourselves to fall away from the concept of scale aerobatics, and for me it is this issue. I am not saying that your opinion is wrong or that mine is the only way to go, but the more we give up, the less we can really call ourselves scale aerobatics.