In addition to what Chilli said, is there a requirement in the AOPA syllabus that you have to do the take offs and landings, too? I'm sure you've already thought of this, but I can't help myself in suggesting that the instructor to all the "tailwheel" bits of the flying and you do all the aerobatic bits. After all, once the wheels are off the ground, a tailwheel airplane is just another airplane. And a Decathalon is a rather nice one at that!
Pitts2112
Got my tailwheel endorsement in a Super-D after only 10 hours. And, quite frankly, 5 of that was just to make up the time.