Well as you can see, it looks like everyone agrees on not to charge an other fellow CFI... To me it would be a professional courtesy to not charge or get charged for a check out or what have you. I guess it all depends on how much you really enjoy flying and your desire to teach and expand aviation. I say if your just in it for the money, then charge, but if its more of a honor to help out a fellow CFI just like your self, then you'll know at that point rather you should charge or not...
