These strings are as "vintage" as you can get. Pure nickel wrap on a round tin-plated, high carbon steel core. Many players believe that round core strings have a feel easier to play with less tension and have a clearer tone. By design, round core strings must be handle carefully so that the outer winding does not come lose. On guitars that have a an eye in the tuning post, it is important to install the string and tune to pitch before cutting the excess string off. On guitars where the tuning post has a hole down the center which require the string to be cut prior to placing the string down the post hole, it is important that to you first make a 90 degree bend before cutting the string. It best to make that 90 degree bend about two inches longer than the post where you will be installing the string. Once you have made the bend leave about one-half inch before cutting the string then place the bent section inside the tuning post and tune to pitch. Be aware that it takes longer for a round core strings to "settle" in and it requires many more tugs, but once installed and settled in, they are amazing.
I have been using the 10-46 REGULAR ROUND CORE PURE NICKEL STRINGS. They have that old school tone and they stay in tune longer. My guitars ring with MANGAN STRINGS I use them on all my guitars. Try them. You will not be disappointed!
I had been using the 9.5-44 pure nickel sets but needed the strings to feel a tad bigger on this one guitar. I wanted to try to maintain the lighter feel I had in the 1/2 gauge set, so I opted to try these 10-46 round core. Well, they're just great! They maintain the lighter feel (not quite as light as the 9.5, but close) and provide that more substantial feeling. These are winners!
Lots of smooth sparkle to this set. Haven't broken in completely but just from my brief time- strings are lively and are staying that way longer. Bravissimo!