I really enjoy variety, sure when I find something I really like it goes into rotation, but I'm never satisfied with just two or three regulars. This seems to present a dilema. I found that I really can't judge a blend well until I've smoked a good 1/2+ oz of it through the pipe. Sometimes something that was just ok or even "not great" the first bowl ends up changing my mind by the time I finish the tin or 1-2 oz bulk. Other times it seems to taste great in only one of my pipes. Am I crazy? Any tips on ways to accelerate an accurate judgment? Sample with meerschaum? clay? What about after I've smoked that 1/2+ oz and decided I really don't like it and want to change that beloved pipe to a different blend? Is there some tried and true clean-out procedure or is this pipe maker myth and I shouldn't be so particular about changing what I'm smoking in a particular pipe?