JB weld pits in floor pan?

Well, in my humble opinion, there are two ways to do rust repair! The right way, and the wrong way. I can't remember how many cars I have torn into where a previous owner had tried to jury rig floor patches with Bondo, Kitty Hair, fiberglass, etc. I have never seen it work well for the long run. Don't forget your car is a unibody, and a weakened floor is NOT a good thing.