Intheways, you`re probably right about the difference between distance riding and TIGging. Yeah, there are a few Seattle Randoneurs on the rbr commute and touring subforum who always seem to have something on the burner- unfortunately, I don`t think there are any organized rando groups in my neighborhood, but I`ll definitely seek out some company.
Good luck on your 200K. That`s my immediate goal too (also, probably for this spring). My current best was 108 miles in the not-so-spectacular time of 9:55, last Oct. I`m still comming out of my winter semi hibernation, but a good bit ahead of where I usually am this time of year. I`m shooting for 300K this fall, hopefully the double will be within my reach next year.