yellingintothevoid:
Dunno if you're still posting about the two narrators question, but I wrote a novel (which is in query phase right now) with two first-person narrators. My trick was to write one in past tense and one in present (and the present-tense character 'wrote' in shorter sentences and more slang, and also a kind of manic tone). He also had only a few chapters to avoid that tone becoming grating. Just my two cents. :3

Cool!!!!!!!