Test flight.
I learned something: The wing will hold together just fine unless you crash it.
I know how I can reinforce the wing, but that's not really the problem. I didn't get a chance to dial in the CG and whatever else before I broke it. It's completely fixable and I'm sure it'll fly once I figure it out but I'm getting a little bit frustrated.
Someone here said a couple months ago that he stopped trying to make his planes too precious once he realized that he builds to fly. Well I'm a design/build guy. Of course we need proof that it flies well (or doesn't) or else the project won't be complete. Going out and getting frustrated with it isn't a lot of incentive to go fly. A well-designed plane that's an easy flier helps me get out to the field.
I feel myself slowing down on this particular plane right now...