Cleartone Treated Acoustic 12 STRING Guitar Strings Ultra Light 10-47
[7410-12]

Put these on my Gibson 12 which usually has no problem staying in tune. Even after 10 days these clear tones are still always getting out of tune. They lose the tuning so fast, I can not complete a song. I know I have strung them correctly, so it is Definately the strings. Back to D'Addario Exp . No problems ever with those.