Rodmakers spent thousands of hours and dollars in R&D to develop flyrods. When they put a line weight on a rod, that is the line that rod was built to cast. I only cast the line that the rod was designed to cast. If you need to overline a rod to get it to load properly the problem is you casting not the weight of the line.
Secondly, I had to say something about this statement. "The bigger Diameter Lines I feel over Rods the Bamboo Rod." Let me let you in on a little secret. The diameter of the line has NOTHING to do with overling a rod. It's the WEIGHT of the line that will over line a rod. Diameter has nothing to do with it
The man who coined the phrase "Money can't buy happiness", never bought himself a good fly rod!