Yes, it is very easy to go for early FP in boston.
My FP date was 4/24/04, I went on 4/2/04 (friday) at around 7.30 am and was out by 8.20 am. I was feeling pretty nervours that someone is going to look at the date and ask why I was coming on a prev date, but nothing of that sort happened and the people at this office were very courteous.