My package weight got adjusted... DOWN?!?
I sent a package 12x10x6" and put a weight on of 2lb 1oz. USPS adjusted the weight DOWN to 1lb 3.04oz and charged me $1.45.
They are correct, of course. I added some "fake" weight (not to the package) to get over 2lbs as the current weird USPS shipping rules make lighter packages more expensive to ship, but I've never heard of this being an issue. They certainly don't do it when I am overpaying when I estimate a bit too high.
This is the very first time I increased the weight of a package to get a better rate too. I've never done that before. My solution is, of course, to add very heavy filler material from here on out, like rocks and stuff, to get over the 2 lbs.