What I found worked with the 2 stones that I had to use on the pressure stones was to place one to raise the back stone to the highest point. I placed the lighter rock on the pressure point to the middle stone which raised this one lower then the tower behind it. Then i stood on the third pressure point. I ran to the front pillar which began to go down (or was it up, I cannot remember) and jumped on it, then to the next while it was moving. Hope this helps you
