I was looking at a double stringed 4-banger, so I guess it's more like 8-Banger. What are they good for, what are they bad for. What kind of sound do you get. Basically, I want to hear all the pros and cons of these basses. They seem pretty cool and I might start saving up for one if the sound is what I like. Also, since the strings are tuned and octave higher, can I just use guitar strings to restring it or what?