That's the first time I have ever seen anyone say A 4* or Tiger is more aerobatic then an Up-Roar but all the planes mentioned are great builds and wonderful flyers.
I built so many Up-roars at one point I made templates of the parts and started scratch building them. It's an easy build and A great flying little plane. With the fun fly planes like the Up-Roar the plane is one piece so the wing doesn't come off and transport can sometimes be A problem. Any .40 to .46 engine will fly them very well, I almost always used the OS .46 LA engines on them, it was just A perfect match. Stock old standard servos work well in this plane. Nothing fancy, just A fun little plane for A kit price of under 50 beans. It was A great club fun fly contest winner too!!!