That one is certenly heavier than 15,8lbs Cytomax.
Your frame and fork are slightly lighter (about 150grams maximum) than mine, but i've got some lighter wheels (100grams), lighter seatpost (50grams), SLR Saddle, Tune Bottle cages and a full SRAM Force group, wich is 1 of the lightest groups on the market...
And my Cervélo SLT weighs about 16,5 lbs...