Is the body of this bass one solid piece of wood? The pictures I see look like it is but I'm not sure. Does anybody know how close the intonation is on this bass is when it's purchased? On Ibanez.com I see that the neck thickness is 19.5mm at the 1st fret and 21.5 at the 12th fret but I see different numbers for it on other websites. Does anyone know what the actual numbers are? Thanks in advance.