best deal on custom shirts???

I've had good luck with mytailor.com and moderntailor.com My first MTM shirts were made by Measure Up through a local men's shop (measured by a tailor). My on-line orders were based on measuring my previous shirts and they turned out great. I would not expect the same results from body measurements. Give moderntailor.com a try. I believe their first order test shirt is around $25. Wash and wear it a few times, then make subsequent re-order adjustments. Your first MTM shirt will not be perfect no matter where you get it. It's an iterative process.