It all depends what do you want with it. Are you playing left and the right side at the same time?? If you play with a band or a keyboard player and you just use right hand for solo than it really does't matter much. Even if you play left hand bass it wouldn' mattet that much. I mean ,if you want to have separate control for bass and solo that you might as well get something,otherwise it doesn't matter.
I have fr8x.