Hi there Jim... It's great to see your interest in IMAC. After reading the above answers, which are comprehensive by the way, my only other suggestion is for you to investigate attending an IMAC Judging School in your area. This will help to clear up any unanswered questions that you may have prior to actually competing. There are a LOT of IMAC pilots in the field who are willing to help...all you have to do is to ask. Another set of eyes can terminate any bad habits from forming & set you on the right "track" (pun intended).

Wayne Matthews
SE IMAC Judging Instructor

PS.... You will learn that there is no such thing as a "Half Square Loop" ... It's called a vertical line .....