I have another Mercury II on the way and I want to use the "Sorftware Transfer" option in the on screen menu to transfer the firmware and data from my current one to the new one. I was wondering if anybody has tried the IRD to IRD download in the Merc II? There are two options (download Firmware, download Database). Seems pretty straight forward but I don't know which IRD should do the download. Do I select download on the master(current) IRD and it pushes it to the slave IRD or do I do the download from the slave? The manual is kind of vague it really doesn't say which IRD you should download to and from. Thanks!