If you modify something in the flight model without our knowledge and something "breaks", and we don't know about your modifications, it makes it almost impossible to help you with whatever problems you are experiencing if the problems have occurred as a result of your modifications. I've seen it before, and the person who made the modifications comes out after 3 or 4 days and says "Oh yeah, I forgot to tell you, I changed a few figures in the flight model." When this happens, it takes time away from our daily lives, whether it's from enjoying time with our families or working on updates and future projects. And that's time we can't afford to lose.