Originally Posted by: pnumaYou could move the B note to the sixth string on the 7th fret and be able to walk down.....

Yeah, you could but it would be a pretty big stretch and the open strings might be hard to control... If I was going to do that I'd play:

e--x--
b--x--
g--4--
d--5--
a--5--
e--7--

The first option is still the easiest... ;)