Like sinistertopiary I vaguely follow this method--I've spent some time trying to learn and get a feel for the process of the thermodynamics of pipe smoking as well as being very conscious in my approach to the different blends that become part of my regular rotation; based on this I can make an educated guess about what a new pipe will smoke well, but in the end it's just that--only a guess--and there is as much magic, unpredictability and temperamental nature in pipes as there is in women. I don't adhere to it very strictly--in fact I enjoy the heretical acts of mixing aromatics in with my vapers in my home-blending experiments, not to mention the occasional bowl of straight perique--but generally when a pipe presents itself as a good chamber for vapers, english, etc., I tend toward genre dedication. The bottom line for me is that I'm *not* always looking for a pristine, repeatable experience. I run into this a lot in the coffee world too--some folks get really bound up by the vagaries of dose, grind, pressure profile, et cetera, and forget that for the vast majority of consumption you're just looking for a cup of joe. That being said, when I try a new blend that I want to invest some time in, or I'm working on a review, I gravitate toward the meer and the clay before exploring other pipes precisely for the clarity of smoke and absence of cross-flavoring, as well as smoking one blend exclusively through a few ounces and under different conditions. In this way I try to define the empirical nature of the blend, isolate the constituent flavor profile, and then go exploring its particular strengths and weaknesses with regard to pipes. In reviews I likewise find that a general directions toward chamber size and shape is the best one can do to point to a blend's best pairing; e.g., CAO Cherry Bomb really stands out in a smaller, slightly conical billiard whereas Eileen's Dream only fully develops in a group 4 straight-sided, rounded-bottomed, preferably with a bent stem. IMHO. :DI always dedicate pipes to a single genre once I discover which genre comes alive in it