I'm one of your YouTube subscribers (UK2AK), so I noticed these videos already when you posted them. They are nicely done.
Because I was in the middle of nowhere and didn't know any other bass players, I am completely self taught and do things in a quirky way.
For instance, I started off playing bass plucking with two fingers on my right hand, but I've always plucked with both sides of my two fingers, the flesh part and the nail part of my fingers, kind of like how guitar players use both sides of a pick.
Jaco was so darned fast with his fingers, it was the only way I could kind of keep up.
Then I added a third finger, again plucking up and down with them, but I used them for triplet (and faster) applications, and used two fingers for 16th note applications.
I started using my thumb when I wanted to play a line I learned to slap, but didn't want that full slap sound. I thought it sounded cool, it did sound different than 2 to 3 fingers, so I started teaching myself to play with the thumb added to my 3 fingers.
When I started using my thumb, I used it both up and down as well, the way I did my other 3 fingers.
I've learned Victor Wooten and Alain Caron use their thumbs like that as well, both up and down.
My big problem with my right hand is that how I use it is so random; I didn't slow it down and use a metronome and get proficient at different patterns as you recommend, I just let whatever finger jumped to do the job do the job.
Consequently, muscle memory tends to rule and my right hand can sound awfully like my previous playing, if that makes any sense. It tends to be the same patterns over and over again with different notes being fingered with my left hand.
I need to liberate my right hand.
I'm going to break it down as you do in your videos, clean it up, and see what I can do with it.
Thanks for taking the time to share this stuff; I'm very appreciative.