While there seem to be a few fairly good guitar sims out there these days, I've yet to find anything for bass that was great. The Amplitude Ampeg stuff is just awful. The Overloud Mark bass plug is not much better. Most guitar sims have one or two bass patches and that's it. The only dedicated one that I found usuable was the Kuassa Cerebus bass. You can load cab IRs and I've actually managed to get a decent sound out of it. Normally I just go DI or mic a cab. Anyone else have any luck with these?