Complex sentence: The G-10 had two assignable knobs and an assignable whammy bar and it used six strings, all the same gauge (thickness), which sensed both right-and left-hand input.
Split into simpler sentences: The G-10 featured two assignable knobs and an assignable whammy bar. It had just 6 strings, all the same gauge (thickness), which sensed both right-and left-hand input.