Re: River smallie rod
The 7 wt would be the safe choice. It would do all you'd ever want, large flies, sinking/sink tip lines, long casts, etc. Given the size of the typical fish, a fast action 6 wt would be a little more sporting and you might enjoy it more. If you're not trying to chuck out long casts, you can always throw a 7wt line with the 6 wt rod, it will turnover the larger flies and I find over-lining my rods by one weight works pretty well, especially with floating lines. As usual, there's no definitive answer. Good luck!