Hey Nick,
Great to hear your going to give IMAC a try.
I'm pretty new to IMAC myself.
The best advice I could give is to go to a contest and fly. Ask as many questions as you can. Either at the contest, or before, find someone that will help you get started the correct way. You'll get a lot of great information on here but it's not a replacement to having someone there standing beside you to get you started the right way.
Find someone that's local that can help you get your plane set up correctly, a mentor if you will. Nothing is worst then fighting your plane through the whole time your flying.
This will help A LOT!! Print this out and read it . Then bring it to the field with you when you start doing trim flights for a quick reference.
http://www.mini-iac.com/Portals/57ad...20trimming.pdf http://www.mini-iac.com/DesktopDefault.aspx?tabid=70
The most inportant thing to remember is to have fun. There will be people there that will bend over backwards to help you get started when you get to the contest to fly. Just don't forget to ASK QUESTIONS.....
Good luck,
Shaun