As long as I shut-down completely I have no battery drain. So I'm thoroughly enjoying my Surface Book. It will be nice to get the "sleep" fix, but that fixes only a very minor inconvenience for me.
Please keep in mind Gary that you said you never shutdown your SB for more than 10 hours at a time, so technically, you may also experience battery drain after 24 hours of shutdown, you just haven't had a chance to experience that yet. I know you said you use the SB too much for a 24 hour test, but if you ever have a down weekend, I would love to know what happens with your SB after 24 hours like the rest of us with the issue.
Well, I do put my SB in my courier bag when I go out. When I take my SB out of the bag, sometimes several hours later, it's always nice and cold to the touch. So I'm sure I'm not getting the sleep related activity some have complained about when they open their bag to a hot computer.
But you are correct. I've yet to go more than 10 hours without turning my Surface Book on. It's the first thing I do in the morning before anything else. Do you think that maybe I have an addiction?