I too tried SB for a few months last summer. Like you, I could lose for awhile but stalled also. (I think it was because I ended up eating too much cheese, nuts, and dark chocolate!) Do you know about the new WW no-counting plan? I've been doing it for several months and have lost much better than on SB. It's similar to SB in that you have a list of foods from which you can eat "freely" until satisfied. Foods not on the list are not off-limits but you count points for them with a weekly maximum. The WW "core" foods are quite similar to the SB list but not so limited on the whole grains and fruits. On the other hand, the cheese, nuts, and dark chocolate mentioned above are not "core" on WW but I find that having to count points for them helps me keep my eating of them in moderation.
This may be more info than you wanted but I personally find the new WW plan very livable.
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