[quote="Drew7":tjxzrfw7]Ok, so this is my first fanned fret bass, and while I've always played primarily with a pick (shhh! I'm really a guitarist, don't blow my cover!) I'm trying to develop solid fingerstyle technique.
The problem I'm running into is that I haven't found a comfortable place to anchor my thumb. The bridge pickup (I play a 5-string Afterburner) isn't bad on the low strings, but on the higher strings means I'm picking right at the bridge, which sounds kind of thin. Moving to the neck pickup solves this, but is probably a little less than ideal from a control perspective on the lower strings.
The bigger issue, however, is that an angled pickup is just not that comfortable under your thumb, especially for longer periods of time. Anchoring against the low B is fine, but I play a seven string guitar so a lot of my riffing does involve the low string.
So, where do you guys anchor? I'd love to see some pictures or video of how you position your hand while you play. I'm pretty ecstatic with everything else about this bass so I'm hoping this is just something I'll get used to with time. Thanks![/quote:tjxzrfw7]
Please allow me to HIGHLY recommend the "floating thumb" technique. I assure you that I did not learn it from Pai Mei, although he did teach me the Five Point Palm Exploding Heart Technique.

If you use the floating thumb technique, you will never again concern yourself with where to anchor your thumb, let alone wearing spots into the finish, or even changing basses having different pickup configurations or number of strings.
Check out Todd Johnson's Youtube video demonstration at [url:tjxzrfw7]http://www.youtube.com/watch?v=PPVMBPmrblU[/url:tjxzrfw7]
I adopted this technique over 6 years ago, and have never concerned myself with right hand technique ever again.
You can check out this thread at Talkbass.com as well, [url:tjxzrfw7]http://www.talkbass.com/forum/f21/floating-thumb-techniqe-230685/[/url:tjxzrfw7], where early in the thread, the exact nature of the technique is differentiated over a number of posts from other techniques such as the floating anchor.
Try it for a week or two, you'll be glad you did!
Besides the advantages mentioned above, other's include:
Being able to play anywhere on the bass (and moving around in mid phrase if you want!) without concern for losing an anchor point;
You mute ALL strings behind the one you are currently playing automatically without even thinking about it;
You maintain precisely the same level and angle of attack for your picking fingers regardless of which string you are playing.
Anchoring in a single place requires your hand to rock back and forth, which changes the angle of attack at each string. Floating the anchor is better, but it still can't mute more than two strings at a time, and you have to place it and remove it as you move.