A fellow flier at our field had one with a Saito 100 in it! No kidding. It flew really nice and with lots of authority from that big Saito, although I am sure he was using throttle management.... I think he said it actually balanced okay. It did super nice, slow, and graceful flat spins. He used a Sullivan FLEX tank, perhaps so he could cram more fuel into that compartment. He wrung it out repeatedly, as he is an accomplished pilot, and it was impressive to say the least.

Ernie