Ya, I had trouble with the reflectiveA7 white and yellow starting to turn black, and the cast vinyl would shrink noticably. When 7 year engineer grade reflective vinyl starts to turn black spots and patches in less than two years, that is a problem. There are alot of pics and posts if you do a search here. I have not used Avery since, never again.
Funny, I lettered a sign with the A7, in no time did the rflective part of the vinyl fall off, but the adhesive remained on the board so you can still see the wording to this day, that was probably 8, 10 years ago.
George