. Was the known L'anse aux Meadows site the best choice? Would another location have served better for the fast-start? Newfoundland makes sense for an initial settlement due to proximity to Greenland/Iceland, but perhaps the Southern tip of the island would have been better than the Northern end? There's a number of great harbors on the south end, plus it's much closer to the Grand Banks. Also, Newfoundland could have served as a useful transit point for a large group of traders working what we now know as the St. Lawrence, or down the East Coast - Nova Scotia, Maine, etc.
L´Anse aux Meadows is good exactly for a transit point because it is on Belle Isle strait. You have 4 coasts meeting there: the Labrador Sea coast of Labrador/Markland to northwest, the Labrador Sea coast of Newfoundland to southeast, the Saint Lawrence coast of Labrador to southwest and Saint Lawrence coast of Newfoundland also to southwest.
Also, the shortest and most convenient route to Nova Scotia is not around the northeast and south coasts of Newfoundland - it is a long detour open to ocean storms. Much easier to follow the western coast of Newfoundland to Corner Brook or so and then cross the Cabot strait to Cape Breton island. There will be no need to return to open Atlantic till the Gut of Canso forces the choice.
Because west coast of Newfoundland is also a decent route to Saint Lawrence. There is an alternative, sure - follow the south coast of Labrador right from Belle Isle strait to Anticosti. But sailing to Cape Breton, and then along the northern coast of Nova Scotia, New Brunswick and Prince Edward Island is a decent alternative... which shares the beginning as far as the Gut of Canso with the route to Atlantic coast.
I have suggested that Cape Breton Island might be an early Norse settlement after L´Anse aux Meadows, precisely because of its convenient branchpoint location, and other reasons. Any comments?