RE: Martin Savannah setup
You should have gotten some general information with the bow. The first thing I'd do is contact Martin or your dealer and ask for the specs.
Just a guess (I've never shot one), but the brace will probably run between 6 1/2 and 7 1/2". I'd start the nock point at about 1/4" above center and adjust according to arrow flight. If you get arrow porpoise (wagging up and down), adjust the nock point until it goes away. You might want to use a piece of masking tape for a temp. nock set until you know where it needs to me, unless you have a nock remover on your pliers.
Chad