hey, i'm just wondering where you people have your thumb when your playing. When i first started playing bass i rested my thumb on the pickup, but my teacher is telling me that i should place my thumb on the string above the one that i'm playing, (eg. play the D string and rest thumb on the A string ect...) and i find that really hard to move from string to string when playing. Also i used to play where you pluck the a string and your plucking finger comes to rest on the string above it (pluck D rest on A). Was the a good/correct way to play? Sorry if this has been posted before. Thanks.