Looking for the wisdom of the many. I've been playing the bass for about 4 months, and have a curious problem with my thumb. I play two finger style, and when playign the lower strings my thumb tends to float. I've been renting a "slammer - hammer" - don't laugh - from my local music store, and I'm I played a couple of bases at the closeby Guitar center particularily a Warwick with MTD pickups that were high enough to allow my thumb to be fixed on the top of the pickup which seemed to minimize the problem. My question is should I move towards purchasing a bass with higher pickups and move on, or is this problem really a technical problem that I should keep doing exercises to try and control? Secondly, I do want to move from the rental world to the owning world, and would love advice on a good easily playable bass to start with. I'd don't mind spending a little more and get something that might be easier to play rather than fighting a cheaper bass. The music style that I'll be playing is generally praise & worship music. Thanks!