I hesitate to take smooth pipes out in the rain, or even sandblasts that I really like. So I have a Kaywoodie Natural Burl whose stinger was cut before I acquired it. Between that and the craggy, thorny finish, it has become my rainy day and farm pipe. Do you guys worry about the rain and the finish? I'm especially interested in the opinions of you sink washing guys, as you have dispelled a lot of the water myths. I make pipes and know that a good layer of wax should be alright, but I still worry about the acidity of rain water destroying my pipes.