@ Rene: Haha, yeah, I'm surprised it took 4 posts for someone to complain about the valve extenders
Truth is, I have previously used the short ones you are using on your Scott (beautiful build by the way), but it's a hassle to inflate the tires with my pump which has a brass head without a clamping device; It relies on friction between the valve stem and the rubber seal ring inside the pump head to stay put under pressure. It barely seals the valve if I use the short one and keeps popping off. These longer extenders are hassle free, but I agree it looks kind of bad.
About the ride: Very powerful, with amazing bb and front end stiffness. Frame weight (size 58) is 981g, fork weighs 316g cut to size. The geometry makes for an agile bike: wheel base is short-ish: 995mm, with 73,5 degree angles. Effective top tube length is average for the size: 570mm. The 130mm stem makes the overall handling close to neutral.
The thin seat stays make for a very comfy rear end. I used to get numb hands with the all carbon cockpit, but since I changed stems the front end transformed into being quite comfortable as well. It truly is a very nice ride indeed.