After trying Woodtone strings over a year ago I’m going back to using them again. I’ve played bluegrass for 55 of the 58 years I have been playing. Most of my acoustics would be considered of the vintage type. Martins and Gibsons with a few newer brands mixed in from Larrivee, Taylor and Eastman. I find the “low tension” medium light strings perfect for my 1953 D18 , 1965 D28 and early 1960s Hummingbird. I tested Woodtone against all major brands. I don’t want any strings not made in the USA. I found Woodtone’s last long enough, sounded better and cost less vs coated strings. They were far better than cheaper uncoated bench type strings. I need consistency from strings I use and wasn’t getting that from the strings I use that were made in Mexico…So I have Woodtone’s on the way. I plan to use low tension on older acoustics and bluegrass strings on some newer guitars plus try out the nickel infused strings.