Decreasing at top of hat

[truenorth]

Hi!-
I am knitting a hat on size 10 circular Addi turbo needles (love them!). I have completed two hats in regular stockinette, but this one is k2p2 ribbing. How do I make it look right when decreasing. I read somewhere that I should k2tog, p2tog all the way around when starting to decrease, but won't that cause an all too sudden decrease? If I start decreasing like I did the other ones (k2tog, k8, k2tog, k8 etc.), the ribbing will be off. Is that just going to be the nature of this beast? I have 100 stitches cast on. Any hints?
Thanks,
Lynnea (inexperienced but love knitting!)