Since you already know how to fly, skip the trainer. If you can fly a T34 a glow sport plane won't give you any trouble. I'm a big fan of Ugly Sticks for second planes. They are great in the wind, durable, as maneuverable or docile as you want them to be depending on setup, and very forgiving of bad piloting. They won't pull themselves out of dives or flip back over from inverted, but that's what your sticks are for, right?