Thanks, guys. Like you, I'm a firm believer in "An Ounce of Prevention is Worth a Pound of Cure" so I studied
Bass Ergonomics online carefully before buying my bass back in May (including the insights of our own Fergie Fulton). I've tried to implement what I learned right from the start:
Keep both wrists as straight and relaxed as possible. For me that means
floating thumb technique for the right hand, and I intend to start playing with the bass strapped on a bit
higher than usual - with the neck tilted at a distinct angle (high headstock). Also, I rotate the bass toward my right side, so if viewed from overhead, the neck is not pointing straight out to the side (9:00) but at an
angle around 10:30.
I try not to exert too much pressure in fretting or in plucking, but haven't mastered either yet. I watched vids showing how
no thumb at all is needed for most fretting, and though I don't have a ramp, I keep that concept in mind to help me use a simple
resting downward stroke (toward the face of the body) rather than the more intense upward
plucking that comes from my guitar work.
I'm learning to play via Ed Friedland's excellent Hal Leonard Bass Series (3 books and 3 CDs set).
Ed suggests fretting 1-2-4 while learning the first positions (rather than 1-2-3). I questioned that at first, but Ed answered my question right here on TB

and now I'm comfortable with it. I can shift out of it when I need to, but find that 1-2-4 is preferable in most cases. Who knew...?

Ed's a good teacher.
I bought a great padded strap that stretches/bounces slightly and has relieved the growing pain in my left shoulder. It's the
Neotech Mega Bass Strap ($30). Try one from Amazon.com. It ships free, and if it fails to meet your expectations, they'll pay to return ship it.
I have two unique issues to overcome:
1. I'm old enough to be feeling some of the joint/skeletal consequences that people in their 20s don't understand (yet).
2. I have matching fretted and fretless basses; the top edge of the rear bout (the edge that contacts my right wrist) is
not eased (or scalloped or scarfed) at all, the way many basses are. In other words, instead of the face softly curving over the top to meet the back of the body, mine has a distinct EDGE where face meets side of body - and that "corner" exerts pressure on the inside of my wrist. Not good.
I've been wearing a tennis sweat band to cushion the wrist and it helps a LOT, but I shouldn't have to do that. The finish is a satin polyurethane, and I'm thinking about sanding off that face-side edge (a lot) and refinishing with a wipe-on satin poly over the best stain match I can manage.
SO, WHAT ELSE CAN I DO TO KEEP FROM ENDING UP IN A WHEELCHAIR (JUST FROM PLAYING ELECTRIC BASS) L

L!