Pete,

I run two Matrix 97's. One on the Trolling motor. One on the console. I use the one on the console for GPS only and run an 1197 beside it. This might not be feasible on some boats but mine is a CC so I had plenty of space. I have the interlink, but did not install it in the boat since I pull all the units off the boat after each trip anyway... I simply hook it up from time to time to "throw" waypoints from unit to unit..

This set up is working great for me. The matrix 97 is a very good unit.

Also, keeping the interlink portable, allows for sharing waypoints between friends a snap