Welcome to the dark side. Get on the IKE forum, ikeclub.org, and talk to Jynx. She's from the Milwaukee area. I'm in Schaumburg, NW Chicago suburbs. The midvent might leave you parked on the ground much of the time in this area of the midwest. The full sail is the choice for first Rev in our area.
However, talk to as many people as possible before buying, and get out to some IKE club flys and check it out in person. We all have plenty of kites that you can try before buying, and all of the club members will be happy to let you try theirs.