Allright, was orginally reticent to buy those China carbon cages but since you guys are telling me they are of somewhat respectable quality I guess i'll go for them.
The only thing is that the red/white/black color of the FSA K-Force bottle cage and Bontrage ones is fitting perfectly the color of my BMC SLC01 red/black frame and it fits perfectly my brand new Merek saddle. So i'm hesitation to go with the color/paint too for a cage at 25 grams