We haven't had any strength issues with their 240s so it's possible that certain builders are designated to specific tank builds. I don't think you will have any issues there. Just be sure to inspect it with a fine tooth comb before filling it. It is the only way we have found that they will really work with you on it.
I do know that if you look at any all-glass or perfecto 5, 10, 15, 20 gallon tank, the build is much worse than a larger tank and I am sure they "break in" their new blood on those.
And they need to fire the entire acrylic build department