Dean Markley Acoustic Blue Steel Phosphor Bronze Light LT, .011 - .046, 2034star rating 3Mark SchneiderFebruary 9, 2010I usually Ernie Ball Earthwood Lights on my Seagull 25th anniversary, (Spruce top, solid mahogany back and sides). Received these as a gift and put them on to test them out. Brand new they did not sound as clear as the 3 week old Earthwoods I took off. Plus they cost nearly twice as much. Cryogenic treatment might be great for baseball bats but I think it's kind of gimicky as far as guitar tone goes.