I am buying some upgrades, and I need help deciding on selle italia saddles. The choice is between a year or two old (new condition) slr team, with carbon rails. These are apparently 145g. The other choice is a slr titanium, again a year or two old, but still new condition, the ones that had 135g stamped on the top. My question is first, why have the slr titanium's gotten heavier? According to selle's site, the weight on the Ti saddles is now 145g. So basically I just want opinions on which one is better. I also work at a bike shop so I can buy this year's models as well if someone recommends a new model.