I would not call the
Pearson "light displacement" at all. It is heavier than the
Cape Dory. True it has a longer waterline, draws a little less and has a little less in ballast, but that
hull design, especially with the skeg, is a great one (IMO) for what you are planning, as long as it has been well cared for. I think Cape Dories are great
boats, but in this case I'd probably pick the
Pearson over it. It will be faster and more maneuverable.