Reluctantly updating this post. I ended up splitting the 30 boxes with my brother since he's been helping me keep my house warm by keeping my wood furnace blazing while I'm still working and living hours away. My brother thought splitting the boxes was a nice gift to him...until we opened them...
30 boxes yielded 6 keepers. We found 3 coins each. 26 skunk boxes. His keepers were all 40%. My keepers were a regular old 40%, a Ben, and a 1970-S. It was nice finding my first 1970, but needless to say, we were disappointed.
The 30-box order didn't help much, but after more decent results from dimes and a solid 10-box order of halves yesterday, I'm now 13 ounces away from hitting 200 for the year. Doesn't look like it is going to happen!