DandD's, it seems to me that your concept for a swap consists of a host who brokers trades for people who want to arrange a number of individual trades at the same time, in concert with a group of other participants doing the same thing. Then sending all of the traded seeds to a central dispatch and having the contents combined with the contents of other packages to make one package return for each player, thus saving postage. Am I correct?
It sounds very efficient but the fun factor is missing for me. I must be missing something.