I brewed a Fulklers ESB style clone on Saturday. My target gravity. was 1.053 what I obtained was 1.041. I pitched the yeast anyway and it it fermenting away. My question is that after only two days I'm already down to 1.015. The recipe I was following said to ferment down to 1.10. That would give an ABV of 4.07. Should I still aim for that or go a little longer?