I would think that conditions and the type of exposure to that cove would dictate that situation, my answer would be that it depends. That being said, in a perfect situation, it little weather or current exposure, I would put the bigger boat/s in the middle, and deploy both bow and Stern Anchors, the stern being done via tender. I would then probabably have every other or every third boat on each side then deploy anchors, both bow and stern, so as not to create tangles. Important to take note of land based structure and how your boat/s swing in accordance with these, that shoud give you an idea as to how you are holding and or swinging. If weather, current, wind or swell comes up, I would'nt be afraid to adjust, or break up into smaller groups.
Lastly, since I do a lot of sidetie'ing in Avalon, I have amassed a lot of bumpers, big ones in fact, the large salmon egg balls, and other sized ones. Go to Minneys and buy some of these, as they almost always have them in the far back corner of the yard. If a boat comes cruising by with a huge wake, ahole or not, you will thank your lucky stars that you did!
Lastly, since I do a lot of sidetie'ing in Avalon, I have amassed a lot of bumpers, big ones in fact, the large salmon egg balls, and other sized ones. Go to Minneys and buy some of these, as they almost always have them in the far back corner of the yard. If a boat comes cruising by with a huge wake, ahole or not, you will thank your lucky stars that you did!