I know this thread is old, but I'm about to order a large SIR9 in "niner green", with a rigid fork. seriously debating between the carbon and the steel fork. Been riding a 3.7lb suspension fork, so either will be a huge improvement, but just can't decide. I am looking mostly for a more supple feel, rather than a super-rigid precision fork. If they are similar in feel, i will flip a coin.