The bulk of the tars and such that you are trying to remove from your pipe are not soluble in water, but they are soluble in alcohol. So, the higher the proof, the better. Isopropyl alcohol should work about as well as Everclear, though some don't like the idea of using anything they would not drink. I can't buy Everclear where I live, so I get by with whatever happens to be around. Usually vodka, because good Scotch has an important role in pipe cleaning, but it does not involve dipping pipe cleaners. Vodka is not as good as Everclear (or isopropyl alcohol), but it is better than not cleaning at all.