Man...I'm frustrated....it's hit or miss with strings, and knowing how "tight" they'll be. And at $40 a pop it's not practical to experiment. How do you know? Juststrings.com posts most tensions, but I just picked up a set of Rotosound Jazz flats (which they didn't have the tension for), sound great, but man I can hardly play them! I've used TI flats, which I like, but they just didn't sound right on my G&L 5 string fretless I've got tendonitis, so I'm a little more sensitive, I guess. Just played them for maybe a half hour, and my wrist is all tired out... I already do strengthing exercises... Any recommendations on low tension flat/half flat/groundwounds for a 5'r?