In the last concerts I try, after twenty years..., to use only one element of the Underwood (only the E side) and the sound of mu bass (with gut strings) through my old GKMB200 and Fdeck pre is very very good. I'm interested to buy a new pick-up, similar to Underwood, but with only one element. Like Shadow, for example. Maybe Gage Lifeline? Others? Advice?