I'm looking at some vintage Kramers, and and hoping to get ones with SD pickups, which I heard became standard sometime in the mid 80s. Are these identifiable by the pickup covers? I have a vintage 80s JB and see that it has two holes in the pickup covers on the top side, and one hole on the bottom side - if I see that on a humbucker is that a very strong suggestions of a SD JB? In particular, here are the 2 guitars I am looking at, which from the serial numbers are right around the years when Kramer started using SD, but the seller doesn't know the pickups and it is probably to much to ask them to look inside. Thanks for the help!
Reverb.com Kramer Pacer Blue
Reverb.com Kramer Pacer Red
Reverb.com Kramer Pacer Blue
Reverb.com Kramer Pacer Red