Hey muzzy,
I hunt over by raystown lake, south of where you are at, I actually work in State college :-)
Anyway, same here, rubs, scrapes, trails walked to sod, and no deer. They seem to be using alternate pathes, hitting the scrapes at different times, and when I have called some bucks in, they are coming from the direction i am LEAST expecting.

Jennings Buckmaster Bow
.50 Cal Thompson Center Renegade