My opinion will differ from most of those already posted here. Isn't diversity great? =)
I wonder how many people that post to this board -- even those who have lost 100+ lbs and been highly successful -- actually fall into the "slender" category. I don't think it's *too* many. I only pose the question to point out that your expectations might surpass the "norm".
If this is the truth -- the honest truth -- then I think surgery is a huge mistake right now. The lap-band doesn't cause rapid weight loss. (At least, again, that's not the "norm".) If you're losing weight right now, no matter how slowly, I'd seriously reconsider having surgery. I think WLS should be a last resort -- the option that someone takes when nothing else works, and their life is out of control because of it.
It sounds to me like something else IS working, and that your life isn't out of control.
How about a slipped or eroded band? Infected port? Dying from the surgery itself?
Yes, these are rare occurances, and lap-band surgery has a VERY low death rate, but just look at how many people here have had our bands removed or replaced. For most of us (I think), the risk didn't matter, because we would have rather died than continued down the path that we were on. It just doesn't sound to me like that's where you're coming from.
Based on what you said, if you have no compelling reason to have surgery in 2 weeks, I'd wait. Wait through the summer, maybe, and see how you're doing and how you feel.
Like I said, my opinion is different. I respect, completely, every opinion written here, and you've definitely come to the right place to get some good advice. In the end, that's all it is, and you have to decide.
*Whatever* you decide, I wish you nothing but the best.
Blessings,
Jonathan