Just my opinion, I don’t think that you’ll find a noticeable difference in the casting over what you have now. For accuracy, I like a shorter rod, like 6’ or 6’6”. My favorite rod is 6’6” and I can do everything with it except very tight quarters where a 5’6” really shines. Sensitivity will probably be about the same within the same general price point. I prefer cork grips, good luck in your search.