and if you don't want to use a user-program slot, then if you have some kind of bank manager software for the REV2, you are actually able to overwrite the factory presets, which is probably ideal for such a basic program... the last patch (and even a few others) in the factory bank are test programs for the filter etc... these are basically useless, and would be perfect slots for your basic programs... but you have to dump your basic program from a user slot, to a computer... and then change the destination bank and program in the SysEx file, and then send it back to the REV2 to do this, so without a proper SysEx bank manager for the REV2 it's not possible... factory programs can only be overwritten via MIDI dump... not from the REV2 directly