I decided before I send out anything, I should find out more information about Agent B. There is very little information available on the web about Agent B. I recognize one of his clients (but this person does not write in the same genre I do.) So, what do I do next? Should I call Agent B and ask what he expects in an initial query? Should I simply send him my query, the first 10 pages, and (of course) the SASE. Should I send him my synopsis, even though it hasn't passed through the snark-o-meter yet? What are good resources for information about agents, besides the web? Other than a few of his clients, the only other information included his address and that he accepts "adult" and "literature".
Under NO circumstances do you telephone an agent to ask what they want in a query.
The standard query for fiction is: cover letter, first five pages. You can include a synopsis if you want but I don't read them unless the first five pages are of interest, AND I'll ask for a novel without seeing one (but that's just me).
You're obsessing here.
You cannot fine tune an agent search.
In fact it's better not to.
If you waste some stamps, so what. You'll benefit from the broader search if you catch someone looking for just what you've got.