Yes. If he has tones he likes, record them by micing up his rig and move on, *maybe* taking the bass half DI _after_ any effects he uses. I'm a Stick player myself, and it's not an easy instrument to record- but it's not actually hard, either. Just don't expect it to sound like a bass or a guitar: it is both, and neither. It is its own phenomenon. It sounds the way it sounds: that's the joy of it.
If he's _looking_ for sounds, you have more work to do. The bass half of a Stick loves compression, and the melody half loves gentle distortion and carefully-applied drive (cf: the intro to "Elephant Talk", King Crimson, or Trey Gunn's "Raw Power"). Have fun playing with that. But if he has the chops, just print what he plays, and don't look back: Stick is one of the more interesting and non-obvious instruments there *is* for most rock and roll. It just ain't gonna sound like pasteurized-process cheese food: it is going to be Different, with a capital D. Revel in that!
