I agree with the benefits of a lighter touch, and have made good progress with it. The problem I am having is with louder, more intense songs. It's not a tone issue really, but a rhythmic feel issue. I can't seem to generate a rocking intensity when plucking softly, even if the amp is turned up. I find I need to turn the amp down and hit harder to really groove in a hard groove where the drummer is smacking the skins. Also with the amp real loud I have trouble playing quietly enough on ballads- my palm muting skills are zip (it sounds ok on the E and A but I get no tone at all from the D or G when palm muting...). I've been thinking maybe a volume pedal is what is called for, so I could "ride the seam" on being the right volume to be able to use a medium-hard attack when the groove-space seems to require it, but still avoid overly stressing my plucking hand.
You might try a different bass just for grins. I had the same problem with Fenders and, much worse, my rickenbackers back in the gigging days. Neither one produced much by way of clear notes anyway no matter how hard I hammered on them. My Jazz was audible only on the E string and the Rick, well, kind of wasn't audible at all.
I just couldn't figure it out until one day I got to borrow a Steinberger from the singer in one of my bands (I took over the bass duties from him and he happened to have one). Instantly I had all kinds of dynamic range at my disposal. I hardly had to touch it and these incredible gun shot notes just blew out of the thing, even through my horrible old Sunn amps I had at the time. I could finally actually turn the amp down (normally had to run my fingers along the bottoms of the knobs till they were all on 11) without disappearing from the mix altogether.
My Carvin is the same way, just a light tap and you get that nice warm pop. I could probably gig with a 50 watt amp with it.
So a lot of the time it's the instrument. If it's a wall of mud, such as an old Fender P or a 4003, it's just kind of hopeless on anything other than something simple like basic blues or C&W.
Like I said before, going fretless can be a big help too. Even Fender style basses sound a lot better without the frets. I.e. my L2000 can get a pretty decent burp with the bridge PU only in parallel mode. It's a lot harder for me to do that on a fretted model (I've tried). But then again, I don't have a lot of strength either.
So the motto "let the bass and amp do the work" is a good one, but it might require a better instrument and amp too....
LS


