Re: winter smallmouth
I like them smallies too!
Same principal applies as in trout fishing. Cold water=slow metabolism and lethargic bass. Have to get deep,around structure, and play with different stripping rates to see what works. Also, try different size nymphs,buggers and clousers until you start getting hits.
"Great things are done when men and mountains meet." William Blake
(For general interest in the Middle Tennessee area)