So a while back Gnorman was throwing out ideas for feats, and he either linked or quoted basically exactly what is in Frank and K's Tomes.
At the time, I was less than enthused by it, because I can't see beyond my own nose.
Now, however, I see that those kinds of feats are absolutely perfect for his e6 classes.

In addition, have you thought of any sort of World or Setting for your classes, Gnorman?