We all know fishing 4″ tubes along the bottom is one of the most productive presentation for smallmouth anywhere. My favorite tube is the Lunker Tube by Lunker City.
I fish with different anglers, some are traditional and continue to use monofilament, others, have switched to braid. In my opinion using a braid line in the 20 lb. test work well for fishing tubes since it’s a very thin diameter, gets to the bottom quickly and because it’s limp and has no stretch, it detects hits faster and produces really good hook-sets even in deep water!