well mine fells purfect for my 210lb fat ass, but i had to soften it a little bit aswell. There is a little flat head screw that you can adjust it with by the bottom mount. There is a S on one side and a H on the other.
I weight about 160 and I have my compression and rebound settings both on soft and my preload in the middle. Right now it is nice and soft. it might even be too soft but I haven't had a chance to test it that much. So I think you will be alright.