...I'm wondering what people think of the Radiogram style exchange. I totally understand idea of trading a contest exchange that is actual practice for trading useful information at other times. In the Sweepstakes case, the exchange is a modified version of the radiogram format the League has used for a long time. Other events such as NAQP also use non-generic exchanges, such as operator name and state. So for those of you who like working Sweepstakes, and/or those of you who would like to see more contests be more of a challenge trading more useful information fields (rather than just 599 NY, e.g.), what would you choose as your required exchange format if you were to design a general-interest contest from scratch? Or if you had the opportunity to update an existing contest?