It's not an ARF, it's a stick build, but my Great Planes Lil Poke qualifies as a "2nd trainer". It is a low-wing, but the dihedral tips make the wing self-righting. After I learned to fly more skillfully with other trainers, this was a ball to fly!! Instructions for this build are excellent, but don't make the mistake of using their power system recommendations. Go to a brushless outrunner. I am running an eflite Park 400 outrunner, eflite 10x7 prop, 11.1 v Li-po. All Up Weight is 17 oz and flight times are 30 minutes or more doing mild acrobatics (no ailerons on this build) and touch-and-goes. I used transparent monokote on this model. Tough and pretty!!