It would probably have been smarter if KnifeEdge hadn't given the enlarging function out to the public. You've not mentioned the fact that just enlarging does not increase the strength of anything. When they're larger without being proportionally stronger, they simply break when stressed.

You're lucky the wings didn't fall off before the engine quit.

There appear to be a number of things that you have to do when you use that enlarge function. I'd suggest you go to the KnifeEdge site to their forums and ask what all those things are.