RE: Well, it finally happened...
I'll bet every plane that has that identical wing joiner fails within the first hour with a Saito .82. That fact that you failed it while taking it easy reenforces my point. I can see why GP takes this stance but they should not offer a plane that they know full well will get higher than recommended engines with such a junky wing joiner design. At the very least there should be a warning in bold print about larger engine selection defeating any warranty. A large percentage of the planes I see at the field have larger than specified engines.