Ahem. It's usually 15, not 25.

Your suggestions are intriguing.
  • Jump check to increase damage.
  • Movement during a flurry of blows.
  • Balance to avoid grapples, charges, and/or trips.
  • Additional trap/grapple/charge/bull rush options.

I'll think about this. Several of those options are already enabled by feats, but you make a good point that there's a difference between having the option of spending your feats on something and having that thing as a class feature and being free to spend your feats elsewhere.