The other most significant T-Line not mentioned in the above article are Titanium Tenkara lines, which are wire and can handle the most windy conditions of all. Here is a Link to the information:
I have never used a Titanium Line for stream fishing, just in stillwater fishing. So I didn’t get the Visual Indicator Esoteric Tackle recommends and just added a fairly short tapered FC. leader between the Ti-Line and the fly as the angler Feels the hits very prominently. and precisely. But, if you intend to use a TI-Line in running waters, the visual indicator section would be very useful as TI-Line is nearly invisible.