Jack Daniels is a sour mash whiskey, but not a bourbon, although most bourbons are made via the sour mash process. The BATF regs that regulate bourbon making are very strict, and Jack doesn't qualify on several counts, notably it's after barrel charcoal filtration. Those who value the flavor and characterof true bourbon would also disagree with your assessment that all whiskies taste the same, so would the person who concocted the recipe that Who is trying to prepare.