and then when you put a 3rd unit on your boat…lol.
keep in mind that you don’t need a Lakemaster chip in the unit in order to share and display waypoints. the waypoint and associated icon are saved on your unit and will still display on any map, including the unit’s basemap or a different brand of chip.
in my case, i both cast and troll from the back of my boat, so the unit on the bow is really a courtesy for guests who are fishing up front. i’ve got 2 Lakemaster chips each for MN, WI, Rainy/LotW, and Great Lakes in my rear units for all of the functionality they offer when paired with the iPilot Link. but i put a Navionics North chip up front so the guest has a map and can view waypoints; it covers all of the upper Midwest at the same price as a single one of those Lakemaster chips. imho the Lakemaster is better, but for the price the Navionics chip is a good option depending on what your needs are in that additional unit. (if i was driving/trolling in the cockpit, and casting in the bow, i’d have a Lakemaster in each spot.)