I have a Variax into a POD HD500 with and H&K tubemeister 36 and a Fishman triple Play into a Macbook Pro/Mainstage3 with an Alesis audio interface. I just purchased the FTP and the Macbook. I am intrigued by your use of the POD as your audio interface. I think I am going to look into that. Are you able to use the triple play interface in Mainstage or do you use the triple play as a generic midi controller?