Having had an instructive evening with advice on technique and posture from @Silvia Bluejay and @Happy Jack I've been playing through the songs of the band I'm going to use it for.
I'm not quite there yet, things I do naturally on regular bass I really have to think about, like muting. I'm developing a picking technique, mostly db plucking but using other fingers in a different way occasionally. My fingers no longer ache like they did after first playing it. Although tbh after a while I need to reset, as I feel it in the shoulders.
Although it's regular bass length - 34" - all my bass are either mid or short scale, so I'm still finding my fretting hand technique.
It's going back to the shop for a tweak as the internation is out, and I'll get advice on maybe lowering the action.
Otherwise, still enjoying playing it, and I've been asked to join an acoustic jazz outfit, which also goes out as an instrumental group. So talk about running before you can walk! 😆