I'm afraid to spend money considering how many people have had bad experiences with these flutes. I decided to give it a try and take a chance given the LOW price and was pleasantly surprised to receive and inspect the flute set. flute finishes. I couldn't find anything wrong with the product and when I tested the aluminum block surface everything was perfect? I was very careful in all aspects of the milling as I was sure something would go wrong with the grooves, nothing. did. I am very happy (and probably happy) with my purchase. TO UPDATE. 12/6 I just bought an extra set because I love them so much.