Matt
The MO-6 and MO-8 have a "USB to Device" connector for saving keyboard data to a USB flash drive. You should be able to port that data between a MO-8 at home to the one at church on a USB flash drive with no problem. Just remember to allow enough time to load the data from the flash drive into the internal memory of the MO-8 at church prior to your performance. Depending on the amount and type of data that you are transfering, this can take a while, and if you are having to hurry, this can lead to stress and errors that can detract from your performance. I would say to allow yourself at least 30 minutes for any data transfers and checkouts on the MO-8 at church.
Keep in mind that the MO-8's soon to be 11 year old technology may tempt you to go with a newer MO-X8, or the current MO-XF8, model, but if you do that, you can not guarantee compatibility of data between the newer models and the MO-8 at church. There was a major sound engine redesign between the MO-8 (Motif ES sound engine) and the newer models with the Motif-XS and XF sound engines.
