No. I haven't done any testing of any kind. But now that I have one I am glad I made the purchase.
I read this review before buying however
Now for the bad news. Because you are free with these I got up and was walking to the other side of the room with my guitar still strapped around me and wouldn't you know it, that's when the strap decided to let go. So today I have a repair to attempt.
This year the diet is definitely gonna stick!
