I am currently considering a couple of basses, including the Upton Hawkes. But, a couple of shops near me have the Shen SB 80. I've heard good things about the SB 100, but in a search of the forum, I couldn't find that much about the 80. Does anyone here own one, or has anyone played one? (I haven't had to chance to visit the shops yet.) What are the major differences between it and the 100? Besides it and the Upton, I'm also considering an Englehardt M-1. Advantages to the Upton and the Shen are the setups that will be included in the purchase. But, I love that old Kay/Englehardt thump, so that's the sound I'm trying to achieve. Thanks in advance... Bluegrass boy..