Misternice, I bought both the Furutech GTX-D Rhodium and Gold, also one aluminum frame and one carbon fiber plate, how long or hours did it take before you formed your conclusions between these two version's that was best for you and your system?, If I can determine benefits of the frame and cover plate, I will buy the same for the other outlet, I am doing this because of the huge mixed bag of opinions out there concerning these wpo's, I am sure this will take a while for my impression's, reply when you can, cheers.