So, are you saying that I should keep my 1199/360 setup instead of upgrading to a newer fishfinder and M360? I was thinking of upgrading to a newer fishfinder to take advantage of Advanced GPS features with my Ultrex (iPilot Link is working fine between the two, though) and might have to get M360 as well depending on what software version is already on the fishfinder. I remember that the old 360 compatibility was removed on the Apex/Solix line above a certain version number.