I play a Spector shorty (US model) - the nut is around 1.64" and very comfortable for me. It's a short-scale obviously, so not directly comparable to the basses in which the OP might have an interest. However, the small body is beautifully ergonomic, as is the neck - a neat combination of substance and slender playability. Ergonomic design seems to be a Spector specialism. The tone is nothing special to my ears but I tend to use a preamp for tone sculpting rather than the on-board pre.