The 106SV is a heavy unit and mine with slowly lower itself in choppy water. I ended up fabricating a little PVC box that goes over the ram mount. It has a hole in it that allows the ball on the GPS to go below and connect to the RAM so that it’s setting securely on the PVC base.
EDIT:
It’s a little hard to explain. Here is a picture:
View attachment 121784
Sorry about the messy console. This was a hasty solution after being out in the Bay when it was rough. It may not be pretty but it's rock- solid. I'll probably add a little lip to the front so I can throw keys and such in there. When I switch boats, I bring my units with me, and I am very happy with my Garmin network. It's a great setup for both freshwater and saltwater.