I didn't listen to your track yet Sqye but here is my take on the discussion.
First, bass is probably the thing that I have the hardest time with. On another bass thread Thrill said he is looking for a bass track that sounds like a 10 story tall glass building or something. I get that, that is the sound I am after as well.
I listened to Yes's Close To The Edge a few months back for the first time on my studio rig, I was shocked at just how good the bass sounded,
that is the depth of tone I am looking for and never achieve.
That said here is my take.
Flat wounds are interesting but they are a specific sound that either works for the track or doesn't. On my bass (a early 70's Jazz) flats are great for a 60's or 70's mellow vibe which I LOVE but when I am recording more aggressive stuff they just don't work at all. I think when people here said "use flats" or "use rounds" they are completely missing the point, neither will work for all situations.... at least in my experience.
To the original point about warm, fat, even sounds from bass...
For me the best bass tracks I have mixed come down to a few things....
1) If I am playing the track I don't worry about playing behind or in front, I don't worry about where my hands are sitting on the bass, I don't worry about getting every note exactly the same volume yadda yadda. I listened to Gearslut posts on this stuff and I started to focus on it so much I lost all vibe and feel. Now I just play... and things sound better. I have been playing bass for 30 some odd years, I think I can play well enough without over thinking about it.
2) I do edit the bass a bit to give it some vibe, usually I push it a little behind the kick.. if people have a problem with that.. dfegad
lol
3) The big key is to automate the hell out of the volume on the bass track. You want even tones, it takes time to even that sh*t out, even with the best players I ever worked with I had lots of bass rides to do.
4) Don't discount the help a little (or a lot) of distortion on bass will do. I can't tell you the last time I used a clean bass track on it's own. Sometimes it just a touch, sometimes the distortion is the lead of the bass tone. I have used guitar amps, pedals, over-driven bass amps, over-driven 1176's, plug-ins, POD, whatever. Again, it all depends on the track, a little dab will do ya or over the top distortion but it can really help to get the bass track to step out of the mix (the trick like everyting else is to know when enough is enough).
5) Don't forget the doubling trick. Thrill and others talked about a moog part below the track, that can be cool. At times it helps to go the other way, play the bass line on a clean guitar track... or a distorted guitar.... then duck it under the bass, it can help greatly with clarity.
6) Tuning tuning tuning. Cloudy bass can come from masking when the bass is beating against the guitars because of tuning. Use the same tuner on all the instruments in the track. I HIGHLY recommend getting a
Buzz Feiten Tuning System for all your instruments including bass. It helps the bass to have an even tune over the whole song and that can really help the bass to stay clear in the mix. Don't overlook this point on tuning, really important IMO.
7) Sometimes the most meaty sounding bass has very little "low end" and a lot more low mids than you might imagine. I think someone else posted
this thread earlier but it is worth a read, what is talked about here matches my experience as well.
Hope some of that helps. As I said, I struggle with bass as well so take all of this with a grain of salt but when I get the above stuff right I usually end up with tracks that I am pretty happy with for the most part.