@Jolltax
Spring for the JB-75 but have a comfortable chair when you practise, they are quite heavy.
Never played the JB-20 though a friend in Kenya reckons it's just fine, he sold the 75 because of the weight.
As for the JB-75, it's a rock solid bass and outstanding value for money. Looks like a jazz bass, plays like one and sounds like one 😀
If I was buying another it would be the sunburst/pau ferro again.