they've got tape on them inside most of the time anyway. the soft packs I've seen have masking tape holding them under the plastic.

you might want to put more on it but I wouldn't hesitate to run that thing. puffing(gasing) is normal for a lipo. swelling is not puffing. when swollen it's more like a balloon. the cases are very tight to the cells anyway. so any puffing can often be seen.

the one on the right is often considered (wrongfully) puffed. that's not puffed thats swollen