I have a 10II at home -- will try to weigh it and post later.
I used to play with a Secret 04 and found the 10II to be more stable or maybe more head heavy -- it's been a while, but I remember that I found the 10II worked well when "blocking" back hard serves, and when serving, but was worse than the 04 (for me) on groundstrokes and volleys. It was nice to have the 10II in the bag for certain doubles situations, and I found that warming up with it helped me tame the power and utilize the accuracy of the 04 a bit more.