Joshua, according to the information in Across Atlantic Ice, the captain of the Cinmar, Thurston Shawn, indicated the Cinmar "dredged all these specimens at the same time". I defer to your knowledge of such trawling, I have no knowledge of trawling operations whatsoever. The authors go on to state: "From Shawn's bathometric information it is clear the remains came from the LGM(Last Glacial Maximum) shore of the James Peninsula, adjacent to the South Lagoon of the ice age Chesapeake Bay".(p. 100, Across Atlantic Ice). Further, and just to provide more info on the blade: "The laurel leaf is 188mm long, 55 wide, and 6 in maximum thickness. It exhibits well-controlled percussion-thinning flaking on both faces. Use-wear studies demonstrate that it was a hafted knife, and non-invasive retouch along its distal margins resulted from resharpened dulled edges. The use-wear traces are consistent with those found on prehistoric knives recovered from mammoth and mastodon butchering sites, as well as those seen on stone knives used during butchering experiments conducted on modern elephants......Although there is NO DEFINITIVE PROOF(my caps-Charl) that the knife and the mastodon are part of the same archaeological assemblage, we contend that the clues from context in which they were deposited and the relatively undamaged condition of the knife overwhelmingly support their association. The edges of the blade are sharp, and there are micro-traces of knife use-wear on the distal surfaces and haft wear on the proximal end. The survival of these use-wear micro-traces indicates that the artifact remained in its primary context until disturbed by the dredge. Thus it was not tumbled, abraded, polished, or damaged by fluvial transport, wave action, or water transport of any kind until brought on board the Cinmar"(pp. 101-102, Across Atlantic Ice). None of this addresses the points you raised regarding the nature of dredging operation, of course!
Now, MY main point was not to support the Solutrean hypothesis but to suggest I felt it unlikely the piece was Maritime Archaic. So I do need to emphasise the following: At no time did I ever suggest, nor would I ever suggest, that because it's too far from the Maritime Archaic culture zone, then therefore it must have originated with a group from Spain!! I have a logical mind, and such an assertion is so illogical I recoil from the idea I would ever say something so foolish. My mind does not work that way!
I also want to say that I am no Solutrean hypothesis apologist. If people want to know more about the theory, they can read the book for themselves and judge for themselves. And they can also put to the test the thoughts of those scholars who are very much in opposition to the Solutrean hypothesis. Here is what I believe remains the best available on-line rebuttal of the Solutrean hypothesis:
http://projectpast.org/gvogel/Resources/z_straus_dwd.pdf
I don't know if Stanford and Bradley are practicing good science or bad science. My personal opinion on good science/bad science in general: looking for evidence that supports one's theories is not bad science. Bad science is ignoring evidence that undermines one's theories.
In any event, my main point involved the Maritime Archaic association. The Cinmar blade occupies all of 4 pages in the book. And the cover illustration of course. For all I really know, it could be a late archaic blade from a fishing expedition based in the Delmarva area.
Clarifying further, I also never said the Delmarva area was too far south for the capabilities of the Maritime Archaic. I simply asked if we had evidence they fished/hunted that far south? And I wondered aloud why they would do so if their resource adaptation was in their own area of the northwest Atlantic, and there were resources aplenty there to meet their needs. If they could journey a day out from Canada, I imagine they could journey a week out, and for all I really know, maybe they could circumnavigate the globe if they were a mind too. I am not questioning their abilities on the open ocean.