I am interested in the control layout of the G&L L2000, ASAT and L2500. which is the function of each knob and mini toggle both in active and passive mode? is the complicate layout and preamp reliable? About the neck i am interested in the biCut technology. is this proved as a reliable technology for cutting necks? is this a "new" tech or is this from the start of the G&L? thanks for helping!!