I'm still learning the basics through extract kits and wanted to experiment a little. I wanted to try eliminating the secondary this time and I ended up coming up short on volume. I racked from my brew pot to keep a lot of the trub out of the primary so I had a little loss of volume there but my OG was in my expected range (1.052). I didn't rack to secondary so no loss there. The batch I just bottled this weekend yielded 46 bottles instead of the 51-53 I was expecting. It works out to 4.65 gallons or something with a FG of 1.020. My OG was in the primary for 13 days. I assume the 131.25 in the (OG-FG)x131.25 equation is based on a volume of 5 gallons. Q1: Is there a way to adjust the multiplier to give me the correct ABV for my smaller batch? Q2: Did I not enough yeast to get me to my expected FG of 1.012? (Krausen was good but it was done off-gassing by day 6.) The kit came with dehydrated yeast so it could have easily been poor preparation. Q3: Does racking to the secondary agitate everything just enough to liven the yeast up again?