I think if/when drugs come out based on genes, it would be nice to know.
But it seems like there has been a ton of hype on this site lately about finding your mutations - with really not much reasoning behind it.
If you're at a center where they're testing the drug based on your genes, then ya, it's good to know. Or perhaps you're looking for your gene in your family (decendents, cousins, aunts/uncles, siblings). Maybe then it's good to know.
Otherwise, there is 0 relevance. No matter how much people claim this and that is a mild mutation, or such and such says that I should have this clinical outcome, this is wrong. You guys have seen it time and time again. Siblings with the same two mutations turning out to have two totaly different forms of CF. Identical twins even having diferent types of CF.
We all want a chrystall ball. We all want to know how CF will turn out. But those who examin the facts know - knowing your genes will not give you that chrystal ball.
Doing your treatments every day and educating yourself about this disease and seeing your doc every 3 months minimum <b> is your chrystal ball </b>.