How do you find the sound of those basses? Are they produce the same sound?
I have only played the FF for a minute through a practice amp because I just had hand surgery, but it seems like the preamp is really versatile and can pretty much give you any sound you need.
The Terra Firma is awesome...I use it for solo stuff, in a metal band, and in a church band. If they made it in different wood combos, I'd buy all of them!