I use them on my TKM LR - there are two types, Nanoweb & Polyweb. The Nanos seem to last longer and don't go furry like the Poly's. I have very acid skin, I go through the Polys almost as fast as conventional strings so I prefer the Nanos but they seem to be harder to find in the stores. Both have good tone though & are probably easier on the frets - but they are expensive.
