Floyd, I picked up on that mount, first thing. Really like it and the quick release. Never understood why Lowrance can't offer something like this. HB does but, not as good as Garmin. I saw Sonny Boy's on his boat. He has it on a large 2" ball mount and I don't think it would come off in the rougher water.
The more I see of Garmin, the more I like it.