Dean Markley Acoustic Alchemy Gold Bronze, .012 - .054, 2023star rating 5Russell MooreDecember 25, 2009I have a handmade D35 model six string made by John Doerr of Kitchener ON Canada. I have used many other maker's strings but these give me the best response and they are very durable. They even continue to sound good when past their best performance life. They are the only choice for me on my Doerr guitar.