I one hundred percent agree with all of that. I learned and grew up at a field at 1/5 the elevation I am at now. I will never forget trying to fly a plane that I brought with me at my new location. I knew it was going to be a performance decrease, but it didn't even get off the ground... This engine would certainly fly the Rascal, I'm not saying that. But I do think it would struggle with even a .91 aerobatic plane, it's that significant. But with that said, I agree that most planes are way over powered. For the most part, I enjoy scale flying a lot more so I think it will work out well. Indonesia sounds like a nice place to fly, and that's cool that you are involved in the club training program. Good on you!