Hi desertrat I would have to agree and disagree the U-CAN is sloppy tracking but if there is one thing that 99% of IMAC flyer's need is practice using the rudder. and far as coupling goes if you cut the wingtips off and reduce your rudder throw it knife edges pretty good even at a slow speed.I like practicing with it better than with a pattern plane because of the slow pace and it makes you work the entire flight. Mark,