I think Ric gas is coming

. To what extent I can do something about it is another matter.
Anyhow, I have owned two ric's previously. A 73' Jetglo 4001 (16 yrs ago paid $450

) and a 1980 4001S (dead mint, 8 years ago)
I have heard many people talk about neck/truss rod issues with older 4001's. I was going to look into maybe getting a late 80's-late 90's 4003. But If I run across a great deal on a 4001 is there anything specific to look for that are issues with these basses?