You have more than enough time for xjt, a lot of the guys in my class were 600/100 CFI's The call back is around 2-3 months, be patient, I would wait until they called you, Colgan will always be hiring cause people are always leaving there. I was there for 9 months then came over here, Colgan was great experience but if given the oppertunity I would probably skipped the Turbo-prop thing, although I don't regret it, so I dunno to each his own. With that time though you will get an interview here just be patient