RE: Getting back into the hobby!
My Progege is a performer. I really love that plane. I bought it just after Mike (Minnflyer) did the review on it. He suggested the OS 55 AX, but I couldn't get one when I wanted it (the LHS had one, sold it, and they were on back order for about two weeks) so I opted for the OS 75 AX engine. It is a power house, and appropriate for the plane.
Minn said, in his review, that the .55 was a great choice, which I don't doubt for a minute. So, if you want one, it will fly great with either engine, but I like the added power of the .75. And it bolted right in.
I was delighted when I measured the CG. It did not require any nose weight at all, perfect balance right out of the box, and setup as per the instructions. The first flight proved that it was a great plane, two clicks of right aileron and no elevator trim necessary, and it flew straight as an arrow, approach and landing were all perfect.
Great plane, great choice.
And, I must agree with Moondogie.. the Four Star's are really great flyers, great choice for a second or whatever. I had the Four Star 40 with an OS 50 engine. My only problem with it was that I would have liked the larger size of the Four Star 60. Other than that, as a low wing aircraft, it was really capable.
CGr.