Razer Naga Pro - Mouse Wheel, more resistant to scrolling.

Hey All, Hoping y'all might have some idea's as I am out of warranty. Randomly today the mouse wheel became harder to scroll. Not sure what I did to it, but looking for ideas on how to repair or what to do to fix his recent change. I've had the mouse going on 2 years now. I did try the "shake upside down" incase something fell in their" and burst of air from the can. Would rather not have to revert to my Razer Naga Chroma, as I really like the swappable plates, but this wheel is driving me up a wall.