Hey now the DP Extra would make a perfect IMAC plane... Mine would do sweet rolling circles and roll as slow as you wanted it too. The big fat fuse is what helps the KE and rudder authority because when on it's side the fuse acts as the wing.

Another great IMAC plane is the Great Planes 33% 330L. It too is great for precision aerobatics and if you don't believe me come to the 2nd Internet Fly-In to witness it with your own eyes.