What kind of uprights are considered top of the line? I am just starting to play upright,and i would like any advice or information that may help me in my playing. I've been playing bass guitar for 4 years, i play 4, 5, and 6 string. I know the basics, but i am still oblivious to the techniques and important things that i need to learn for upright. I would gladly appreciate any info. Thanks.