Not like IMAC at all between maneuvers if your not lined up the way you want you can call dead pass and do another go around. Prior to entering your maneuver you call it. I call mine prior to the last turn to the flight line "My next maneuver will be a LOOP" Now depending on the prototype being modeled 150 to 200 ft before center if I am positioned correctly I will announce "Starting Now" the same distance past center I will call "Complete" Judging is only between those two calls. Now a loop must be prototypical. A cub does not normally fly a loop without having to enter a bit of a dive to build up airspeed and the loop will be smaller and most likely oval shape and this is what the judges will be looking for as close to dead center as the pilot can get. WW1 aircraft may loop with or without the dive and some might actually stall at the top and fall on the back completing the loop. High performance aircraft enter the loop from straight and level and the size would depend on the prototype, jets and warbirds would have larger loops than an Edge but all of them would be expected to be round..

We have had many IMAC pilots enter scale with their IMAC planes and when they fly the maneuvers like they do in IMAC competition they do not score very well. They get upset because they score so well in IMAC but have failed to study the flight envelope of the prototype. The two have very different criteria.