Well I test rode an Addict and the front end felt similar to my SuperSix, and better than some other bikes with tapered steerers, so I don’t think it's loosing much if anything. I’m sure they will have them in the future like the F01 which uses a 1.25 lower. However Cavendish seemed to prefer his Addict over the F01, so it must ready be plenty stiff for him, which means it should be plenty stiff for everyone. In anycase according to Cervelo's testing the 1.5 lower results in so much aerodynamic drag that its like adding 200-300 extra grams of frame weight. That's why they don't use it on the S3 and I think why Scott used a 1.25 on the F01, good enough to satisfy the marketing department, but without causing to much damage in terms of actual performance.