Tried these strings on my Les Paul Custom. It is a different LP Custom than most others. It has a Mahogany top and rosewood fingerboard, which makes it a bit dull sounding acoustically. It sounds fine plugged in with regulars strings but lacks some, how shall I put it, crispiness when played acoustically. M-steel-strings made it much better actually. And they seem to last longer. Low price for fixing the disappointments of a really expensive guitar. Thumbs up!