I ran 4 degree for years, installed a set of 0 degree on the SXR in 04, and like them, then installed XMetal on the FS ski (SJ) later that year........ last year I got to borrow a Limited SXR from YamaCat to go race at Lake Norman, it had my old 4 degree bars on it.... I could not ride that ski to save my life, hated the 4 degree bars, made me feel to relaxed and not enough input on the steering......
but, it is personal preference.