I brewed a 6.5 gal batch of IPA. OG was 1.065. Two weeks later I racked (per recipe) to carboy. SG was 1.030 at 70 degrees, and there it remained for a week instead of steadily going to planned FG of 1.014. I chose to put the carboy on a heat mat to jumpstart the yeast (Safale US-05), and within...