I like the trig solution a lot, it is as accurate, and as easy to do.

As for the preciseness and squareness of a model..Im all for being as precise as possible...to a fault even, but at the same time, there is no way on earth it is possible to build a perfectly square airplane, or any wood based product, and keep it perfectly square. The minute the temp raises and the humidity goes up, anywhere you have different wood types or material types, you'll get expansion and contraction at different rates...While Ill continue to build as close to exact as possible because Im neurotic that way, I think it is funny how the technology and tools of today somehow dictate that anything less wont work and work well, and it is possible that some make it much more complex than it really has to be. But thats all part of the fun.

Thanks for all your help, folks. This forum is the best thing Ive found in a long time and Im learning TONS from being here.