I use 6 and 7wts for bay species like spotted bay bass, croaker, bonefish, halibut, and corvina. Inshore saltwater its usually 8 and 9wts for barracuda, bonito, calico bass, sandbass but I have a 10wt rigged and ready for smallish yellowtail. I usually use at least a 9wt around the kelp beds since the muscle compared to lighter rods is needed to lever fish from the kelp. I use a Sage Smallmouth and Largemouth rod for 'yak fishing. Its 10, 11, and 12, and 13s for dorado skipjack, yellowfin, albacore (true albacore) bluefin and bigger yellowtail. For sharks I have used 14 and 16wt rods. Most of these are Sage (RPLX, RPLXi, FLi) and Redington (CPS and older SSF) models. I have borrowed the 14 and 16wt Sage Xi2 rods. I have a minimum of 3 rods in 6,7,8,9,10, and 12wt and usually have at least 4 rods with me when fishing from a boat sometimes 6 or 7, all rigged with different lines and flies.