Re: deep V as opposed to flat bottom.
Check out oldwharf.com, a boat builder in Wellfleet on Cape Cod for examples of the style of boat that are suited for use around Cape Cod. He builds flat bottom skiffs for use by commercial and sports fishermen on the Cape. They have a long history of use in New England going back hundreds of years. Waters on the Cape can be shallow with sandbars extending for a mile or so out into the Bay at low tide. Flat bottoms are perfect for beaching, clamming, fishing in shallows, exploring tidal creeks, etc. All that said, the water can be choppy too, especially out in the Bay with a good Sou'wester running. But you only need a deep V if you're planning on running at high speed. I live right on the Bay and I have a flat bottom 16' Amesbury style skiff. They've been building them in Massachusetts for a couple of hundred years. Must be something right about a flat bottom!