thank you for your kind words!
Just had to take a look at the session, and yep, there's some stuff going on. I ended up just using the DI. For the DI track itself I used an Ampeg SVT3 Pro (used the graphic eq on that to cut 150, 300 and some 600), which is followed by an UAD LA-2A Gray that is doing some heavy lifting (up to 7dB GR). From there I send it to a neck track. That's a phase linear high pass (Pro Q3) at 580, hammered by TrackComp in DMG mode (3:1, 2.4ms attack, 270ms release, about 10dB GR) followed by MH Character in SoftSat on it with almost maxed out drive, to get some hair. This track is actually balanced pretty high and, sorry if this sounds dumb, makes the strings of the bass guitar tickle inside my throat.

But still the bass was a bit all over, so I summed these two tracks. I dynamically cut 113 Hz with a Pro Q3, because it kept bugging me. Now there was lack of a little oomph. I used LTL ChopShop in LowRider mode to add a little weight below 150. For a bit more control and glue of the two tracks I followed with an LA-3A which is doing 1-2dB GR. Still not happy with the low end, so I added Pro-MB with only one band below 280, which smoothes out some notes that stick out (1-2dB GR). Still not quite there, so I parallel send the whole bass bus into an all-buttons-in 1176E for some consistent fatness. It's balanced very low.
That's it

Seems like a lot, but most of the stuff is doing a specialized job.