How about some actual help. I understand the posts here can sometimes be short and without a lot of info and that half the people won't ever follow up after their question, but if you are going to take the time to post, post something helpful.
I think the OP is having a quandry about not having enough space to fit an R-30 in their rafter bay. Its indeed a problem not easily solved. I don't know of anything besides closed cell spray foam that would get you the required R-value in a 2x6 bay. If that's not feasable, you need to either fur down the rafters or use a higher density insulation like Roxul and put 2" XPS to the rafters which makes drywalling a little more difficult.