I know the Titanium series is made out of titianium, and the older swing power 900 is made out of graphite....however, is there any obvious benefit with the titanium version? Any of you players out there who have tried both, do you think there is any worth in buying a more expensive ti SP over the old ISO SP?? Also, what does "Long" mean? Does it refer to a longer head-area? or a longer shaft?