GMCPauls Rear Drop Coils 4 or 5 ?

[tommypic]

Has anyone ordered rear drop coils from GMCPauls ? I ordered 5" drop coils but when I got then the box says they are 4" . I sent them an email an this is what they had to say
We spoke with the manufacturer and they are
positive that they wound and tempered your springs for
a 5" drop, if you are trying to compare the new
springs ride height to your trucks 30year old springs
ride height then a difference in drop of 1" would be
about right because your used springs would have been
sagging from age at least 1-2"
I was just wondering if anyone had this come up before ? I don't want to put them on and it be the wrong drop .