Hi Bugbear, it's a little too bad you went with Ancestry, in my humble opinion.
For US$30 (if I recall correctly) you can upload the results to Family Tree DNA once you have them, to try for matches there.
What I was originally suggesting was YDNA testing, the one that is used to trace a male line. That is not done by Ancestry. You mentioned that you might be able to find a male-line descendant in your husband's family, so I would still consider that -- since there is a male-line descendant of William Skinner Bice c1790 in the Cornwall YDNA project at FTDNA.
I would strongly suspect that the various Bices in Cornwall are all related, and YDNA tests can show connection with a common male ancestor pretty far back. Autosomal testing will not identify cousinships beyond 5th cousin (i.e. same grx4 grandparent), really, and may not do so reliably that far back.
Otherwise, you might see whether the Bice descendant at FTDNA has done (or would do) an autosomal test of the same kind as Anc'y's (called Family Finder at FTDNA), so that you could upload and compare, or would test at Ancestry himself.
