I concur with MeeNMac. basic navigation rules are to keep to the right. Years ago, (80's), seldom did you see someone coming from the Little Mark towards the closed end of Alton Bay who was going down the left side of the bay. It seemed that it was almost keep right was the rule. Coming out, stay fairly close to Echo Point, and coming in, stay well to the west of Echo Point.
Now it is sometimes almost comical to see the line up of 4 or 5 or 6 or more boats across the bay heading in or out. And to think that NASCAR gets excited over racing 3 abreast!!!!!!!
bottom line, be defensive out there, because it seems the other guy's attitude seems to be "get outta my way".
Oh, new pet peeve: Parked at the end of a dock in wolfeboro on Mon night. came back and someone had untied me, moved my boat all the way down the front of the dock. Like to have seen the person(s). Would like to have let them have a conversation with Wolfeboro's finest.