I've killed a couple tom's in Klickitat over the years (lived in Vancouver for many years), and almost got one there last year. I know it like the back of my hand, since I've been going there since I was a little kid. It's getting to be a real zoo though during turkey season. After moving to Tacoma five years ago however, heading east through Cle Elum is a lot closer (hour and a half vs. four hrs. to Klickitat) and I see birds in that area fairly often. I know birds disperse in the spring though, and it's probably like finding a feathered bigfoot in a haystack. Or maybe not.
If you were me, would you head east and scout, or just stick to what I know and hunt Klickitat?