has anybody used the onboard MIDI of the P4B266? i've got the midisport usb 1X1 because i thought that was all i would need. as it turns out the midi out on the line6 POD's doesn't seem to work like a midi thru. i'm going to try and contact line6 support on this. but in the meantime i would like to be able to edit pathches on these units without unplugging $*^t to do it and i was hoping not to have to by another interface. if the onboard midi interface works well then it might be the solution. any opinions?