RE: Second plane?
My second was a Goldberg Tiger 60. Low wing with a slight dihedral. Very nice flying plane, and I still have it and still fly it after several years. Large so it is very visible which is a good thing.
Another, the Sig Four Star 40 (as mentioned above) is a great one, but I would think the larger version, Four Star 60, would be a tad bit easier to fly but has all the capabilities of the smaller 40 sized plane but is more visible (larger).
DS.