The risk of slippage is very low, as I understand it, with a typical band surgery. Surgeons at Weight Loss Surgical Center actually also sew a flap of stomach over the band to help keep it even more secure. The post-op diet is the final precaution to prevent it.
Jen, the post-op diet is tough, just stick to it as well as you can, and in just a couple more weeks your life on that front will be easier.
I’m not certain of the symptoms of a band slip, but definitely talk to you clinical provider at you next visit, so you’ll know what to look out for. If it seems like slippage could happen to a person, the provider will do a barium swallow to see for sure.
Remember that part of the reason you probably got the band was because it has low risks for complications, and take heart in that. I would stick to the post-op diet as close as you can, and you should be pretty safe.