I wonder if pulling my outerwears off my k&n would help.

I pulled the outerwear off my UNI. No difference.

I'm using a new spark arrestor, genuine mikuni jets, pulled the pipe and cleaned the small amount of build up in it, same air filter w/ same oil (tried with and without outerwear), and been using the same fuel for the last 3 or so years.  Only thing I haven't changed are the reeds, which I might as well swap out at this point.