Hey guys, In my first AG batch today my OG was a bit lower than I expected and I am looking for help in finding why. I am pretty sure it is just that my efficiency was low, but if any of you can help I would appreciate it. How the day went: Recipe: 13 lb 6 row, 1 lb 40 crystal, 0.5 lb carapils plus the bitter buddies and some irish moss I was shooting for a low end imperial IPA I mashed with 3.5 gal in a 5 gallon cooler and temps ranged from 151-154 throughout the 60 min. I sparged with another 3.5-4 gallons and got to a 5.5 gallon boil. Boiled 75 min with hop additions. Added 1/4 cup table sugar at flame out (I know it is not great, but I didnt have corn sugar and I needed a little boost) After topping off the wort I end up with a 6 gallon batch (I didnt realize how much my pot held and over filled a little) I pitched Safale 05 and am waiting for some lock popping to start. My OG was 1.043. I tested my hydrometer and it was .002 off so I could say 1.045, but still much lower than I needed for this one. Can some of you brew vets point out all my mistakes here so I can improve my efficiency? Thanks in advance.