I bought a Harley Benton 6 string bass. Had problems tuning the strings. So I decided to replace them with these. I had to buy to packages to do all 6 of them.
The experience is overwelming. It is very easy to mount, it is very very stable, it feels good while tuning, it stays in tune... I love them. I adore them.
Pro's: anything
Cons: none exept Thomann did not have a six-pack.