I love D'Addario Titanium strings and similar strings like the Ko'olau Alohi strings. I love the larger gauge compared to nylgut or fluorocarbon, I love the slight brightness they have compared to clear or black nylon (although the sound certainly doesn't suit every uke), and I simply adore the feel of the strings which is soft but still sort of glass-like. It's marvelous. But the issue I have with every variant of these Titanium strings (or whatever the monofilament that is used for them) is that they can't hold their tune. Whenever I tune up a uke with these strings on and start playing they always go sharp.
I did a little research and found some really old archived discussions here on UU that mentioned that these types of strings are very sensitive to temperature and/or humidity changes. I'm guessing that they heat up just a tiny bit when playing regularly, just enough for them to go out of tune. Actually, it's easy to test this by holding the string tight between your fingers and running them along the string a few times. This causes some friction and heat and always makes the string go sharp. The same happens with nylon strings (and probably with other types as well to an extent) but isn't nearly as noticeable, at least not with regular playing. First I thought the issue was that I had set up some of my ukes poorly such that the strings got caught in the nut slots or something but I tested this out with a professionally set up uke and I experienced the same issue.
So, any suggestions on how to deal with this issue or should I just give up on these strings?
I did a little research and found some really old archived discussions here on UU that mentioned that these types of strings are very sensitive to temperature and/or humidity changes. I'm guessing that they heat up just a tiny bit when playing regularly, just enough for them to go out of tune. Actually, it's easy to test this by holding the string tight between your fingers and running them along the string a few times. This causes some friction and heat and always makes the string go sharp. The same happens with nylon strings (and probably with other types as well to an extent) but isn't nearly as noticeable, at least not with regular playing. First I thought the issue was that I had set up some of my ukes poorly such that the strings got caught in the nut slots or something but I tested this out with a professionally set up uke and I experienced the same issue.
So, any suggestions on how to deal with this issue or should I just give up on these strings?