I bought my first Ric, a used 620, and would like to ask a few questions.
I've always been a Fender player, so I know nothing about Rickenbacker pots, wiring and what it should look like under the pickguard.
Here's how it looks:


My questions:
Does it look stock or are there any distinguishable mods?
Another thing that has caught my attention are the pickups.
The pole pieces (the round allen things on each pickup) on the bridge pickup have some sort of letters on them, I could tell an S and theres some 2 or 3 more. The ones on the neck pickup seem to be blank. Is that normal?
The four corner philips screws are very short and each one is attached to a small nut, not reaching the wood (they sit on the black foamy pad that is under each pickup). What are they for?




