RE: d-75 String material
For what it is worth, I have never had a problem with it. But, in past years I have heard of the "Pros" immediately swapping out all of the D75 material strings/cables for the winners choice counterparts.
Supposedly, Hoyt is using a new process this year on the strings to reduce creep further. Again, I haven't had a problem with either of the Razortecs that I have owned this year but, I have now heard of one or two occasions where folks are experiencing creep problems with it again.