You have to ask yourself what type of bass player you ultimately want to be.
If you're curious, you may want to pick up this book I just bought:
http://www.amazon.com/Theory-Contemp.../dp/0739062891
It's aimed at bass players who want to understand his/her role effectively, with enough theory to give you a solid toolset.
Not only does it cover a lot of basic, common ground, but includes a CD for ear training. It also includes quizzes and tests after each section where you can test your knowledge, which I believe is important to give you a guidepost of how well you understand the material.
What 'type' of bass player? Hmmmm. That's easy: I wanna be the Hendrix/Smits/Jamerson of bass players. I'm that good in my dreams! I don't want to play for money, but I'd like to be good enough to be asked what I charge to play.
You mentioned tab. I dislike it.
I always thought tab was cheating and it wasn't a real musical representation since it has no meter or timing. I know that's not a true representation of what it is and many people use it exclusively, but I see no actual value in using it to me.
The bass cleft scoring isn't much better, as it never did and still doesn't FEEL natural and really lends itself more to keyboards, but I have already made a (rather forced) association to it and feel it might just generally confuse me to make any changes in that vein now.
I can sight read pretty good and have made the scored notes association to my fingers work,
albeit somewhat slowly. I can't just pick a music sheet up and play it outright but I can noodle it until I can hear the song and make the notes mean something. (IE:
This B natural note is two positions higher than the last note and comes before the next, lower note so I have to go down a half tone here....etc)
NEXT PART: I hope everyone knows what I mean when I say I play 'boxes'.
I form mental images about the fretted notes I need for a particular bassline and it makes a shape like a connect-the-dots box in my mind and I just stay in that area to play. I can make a lot of chord/box inversions and I guess I am getting into arpeggios indirectly that way.
Some of these boxes have 'tails' on them, some are open in the center of the box, others have 'eyes' to the right, left or top or bottom of the box.
I guess in my own way I have found a lot of the modes and just mentally renamed them for my own clarity.
Maybe a "
Mixolduvian IIX-Diminished" is my "
C-left tail-top, one eyed" box! But it clicks with me; now if I can learn the real names of the boxes all will be good-er.
I've got a lot of nice gear and I have a strong desire to just jam and have a good time - and perhaps I will be happy with that - but there's always the 'other side of the fence' mentality running a full video show in my brain.
If I am smiling when I play, I can bet you it isn't a pending bilabial capacitive.
I want to never become delusional and go in the deep side of the wading pool, but the bass-playing Zero-G waters are very enticing and provide me with a great amount of mental vacation time when I can crawl out of this body and just fly without gravity dragging me down for a short while, fingers unchecked and with full control of my own creativity.
I think I just got something in my eye.