I have a Squier fretless jazz, the new one that looks like Jaco's, that is currently strung with Fender flats. I do not like them, too high tension for me. I just ordered Thomastik flats, JF-344's, and am wondering how much changing in the set-up there will be going from the Fenders to the TI's? I have a killer mwaa going now. Thanks ahead of time for your help. Peace.