Depends on the fllies he will throw. Small poppers will work well as well as non or lightly weighted streamers. I use a 5, but I have for years. I've learned what weight streamers and what size pppers worked best that I tie. Tight lines...Mike
The nine ft six weight is one of the most recommended by the experts just as was the 7 and even an eight weight years back. Todays six is a great rod for casting small poppers and flies of the Smallmouth variety.