I’ve no idea as I’ve only fished mine at 13 and 15. It is fine at 15.Yes they did. And they go back a good few years now. I forgot about those. Some say highly recommended for barbel too but I’ve never tried one personally. If a complete one came up cheap enough I’d probably take a punt on it.
I’ve seen afew pop up but quite often they are missing a section. How does it handle at 17ft?
I also have a 14ft XS and the Triaxial is hugely more powerful.