rgr that, one of the major things is timing...i found that as long as i wait for my push time then i'm kewl..bout 5 clicks out they call for ACLS lock on and i'm good. dont forget to couple your ap for this as well and set your nav/hsi up for ACL. If u want u can disengage the autopilot at any time...i havent tried to re-engage it however...the time pushbutton in the hsi page is a gem...