I bought the abraxas for the neck of my guitar, but it isnt built yet so I cant try it out, lol!
Havent a clue on the lower output I'm afraid, I'm not quite that experienced yet. :? If you're flicking backwards and forwards in the same track/set list I could see it messing you around a little, but if you're just using it for jamming at home or your got time to adjust amps then I doubt it would matter. :?