My dad keeps telling me that I need to get a 20 lb test line on my reel. The reel is a Zebco 404 with a low gear ratio and a ten pound test line. My rod is a Shakespeare Ugly Stik, Medium/Light duty and they recommend no more than a 10 lb test line. Dad says I should be able to put a reel with a higher gear ratio and twenty pound test line on it with no problem. However, I have read of others who recommend that I stay within the range listed on the rod. Any thoughts?