Welcome @Wellsyboy, I'd recommend that you simply listen to the music you like and pay attention to the bass parts. The likes of Jaco, genius though he was, are not a great starting point for a study of bass, there's are some amazing bass parts hidden in some otherwise quite ordinary songs. Good luck 👍
So, metal polish ordered, next job is to identify which of the screws is rattling, which I suspect is going to go hand in hand with replacing the old, ugly and rusty flat-head screws with some nice, new and shiny cross head equivalents 👍
Yep, we hear with our eyes and our emotions more than we realise. I get it with strings a lot, swear I can hear a nasty overtone but in reality my brain’s focussing on and unconsciously amplifying a very small part of the overall sounds making me irritable and causing a viscous circle 👍
As above really, I’m messing with some bitsas, can I use a hand-held such as this?
https://www.toolstation.com/dewalt-dcw604nt-xj-18v-xr-brushless-14-router/p75238?store=E1&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfeed&mkwid=_dm&pcrid=&pkw=&pmt=&gclid=EAIaIQobChMI5o7-x9nj_AIVh7btCh130AV3EAQYASABEgLCiPD_BwE&gclsrc=aw.ds
Wish I looked that cool when I get cramp, got finger cramp at a gig just before Xmas (stupidly experimenting with short-scale) and apparently looked like I'd forgotten how to play
I bought a rather lovely SSL Fusion from Bruce, great comms, very quickly sent and very well packaged, which was just as well as the courier did what couriers do best, and all very quickly sorted with the courier by Bruce also. Highly recommended geezer 👍