Everyone always seems to assume that bass is way easier than guitar, but I find it the opposite, I cant play bass to save my life :( I did some "fake" bass on my latest recording up in the Players forum (neck LP pickup into a bass model in amplitube), but I'm not used to playing it and my rhythm has got a bit sloppy, and you can hear the whole song go "thin" when I miss a note, even though technically the notes are really simple you can hear the mistake and you can really miss it in the song.. so yeah I guess my advice as a guitarist who's tried to play bass is that your picking needs to be as tight as a camels arse in a sandstorm, otherwise itl just sound cr@p, in my experience.