johnbasalla said:
Actual poly-vinyl was way better then styrene pressings. Back in the 1960s, I assume most promo copies were pressed in durable vinyl. If certain records cue-burned faster, it was probably because they were made of styrene. Did you ever end up using all 10 copies? Did you notice the difference in pressings?
I remember that Columbia Records gave radio station's high quality vinyl pressings, while less durable pressings went to the store (although not the cheapest version of the styrene product). Capitol Records seemed to give both radio and consumer the same good quality vinyl. RCA generally did what Columbia did.
Quality of promo copies vaired greatly. You're right about styrene as opposed to vinyl.
Rarely did I go through all 10 copies. 3-5 was about right...7 for a troublesome one.
I may have gone through 10 of one or two from MCA around 1974....they'd switched to recycled vinyl and some of it was pressed with microscopic bits of the old labels ground into the vinyl....getting a copy that didn't skip or stick was a challenge for a few months....made worse by the fact that it was Elton John's label and one of his peak years.
Capitol was very good...and so was Warners when they switched pressing to Capitol around '75 or '76 (the ridges around the label were the giveaway).