I have tested other coffees using my 'warm up' method .... but only if I'm not satisfied with the flavor straight out of the package. I'm picky about my coffee, but not a 'purist jerk' like you Monk (LOL). I can't stand the flavored coffees, get irritated when someone uses my coffee pot for that sh** (can never get the smell out). I would never put rum in my coffee ... mainly because I like my coffee black & unadulterated, but also because I only buy the expensive rum ..... and I only drink that straight & unadulterated, too
You asked how I prepare my coffee: Depends on where I am - I have a burr grinder at home, but have a blade grinder in my motorhome, and an old-fashioned, manual crank grinder at my cabin. And depending on where I am and what I have access to, I either prepare it as drip, in my Italian coffee maker, in my French press, in my old-fashioned, stove-top percolator (at the cabin), or other. When I lived in JM, I didn't have a coffee maker, so I did it the way the ladies on the B Mtn showed me ...... add coffee grounds to a pan of water, steep sufficiently, strain & serve. I'm a hopeless addict .... have to have it every morning .... and I do enjoy it!!!