I have been playing flamenco guitar for a long time already and whenever I went to a shop to buy strings always asked for extra hard tension, tried many makers and D'addario seemed to last forever without breaking so that was my choice, there are more expensive ones but I found this ones to be better in the long run. However Extra hard tension where difficult to find is shops, so I bought 10 sets from Thomann, and saved some pennies, If you know your favourites I recommend doing this, perhaps I'll buy the composites ones next time, they do last forever!
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