Excellent post!
Sometimes a banana is just a banana...Another palette refining tip. When smoking the second or last third and drinking nothing stronger than water, coffee or straight coke; include a just-turned-ripe banana in the routine occasionally. The banana should be on the citrus-tangy side of fresh (just coming off green), this doesn't work with a too ripe banana. Take small bites of the banana (Freud would love this one!) about every third puff as a means of freshening the palette from any harshness that might possibly slip into those final portions of even a fine cigar. This will also help bring out flavors in the smoke (the banana taste seems to get quickly neutralized) that you may not have known were there. Drink your liquid as normal.