You're local, you'd know better if that would work or if I should swing even wider around Boston..
I intentionally don't get down that way very often.
Sorry -- missed your question. I must have been out riding.
I haven't ventured onto any road starting with "I-" yet, but my car experience tells me that it's usually just as easy to go right through Boston, enjoy the Big Dig you paid for, etc. -- as long as you check the traffic report first. Weaving through Boston on a weekend shouldn't be too bad either, in case you need to dive off the interstate.
I didn't end up making it down there.. I went around the lake on Saturday, Sunday was a bit of wash as my buddy didn't show up until late and I had to get to Logan to pick up a friend whos flight was landing at 9. Home by midnight, up drinking until about 5, Monday recovery..