For the last two years, I've ridden through the winters here in Seattle by wearing waterproof rain pants over knickers. I would like to switch to tights over those knickers. I usually ride anywhere from 30-55 miles so really want some tights that are as warm and water resistant as possible. Since I have knickers with a chamois I really like, I'm looking at tights without chamois to put over the knickers. Do any of you guys who ride for several hours in rain at 30-50 degrees have any favorites? I am about to try the Sugoi Firewall tights but want to hear about any others you really like. Thanks!