As others have pointed out Cherry gives a nicer color faster than other woods. Using 225*F as a smoking temp is fine but a heavy Bark with a Dark Color only happens over a fairly long period of time. A 20 hour Butt or Brisket gets a nice dark Bark with or without added sweetener. When smoking a short time 5-6 hours like with Ribs and Foiling, keeping the surface moist, you need a combination of Time to Dry the surface of the meat and to choose the best Sweetener for the temp you choose to smoke at...Example, Fructose a simple sugar in Fruit Juices and Honey will begin to Caramelize at 230*F, if sufficiently dehydrated, so brushing the Ribs with Honey or 100% Pure Apple Juice, cooked down until a Syrupy consistency will give an nice brown bark near the end of the last hour as long as the Smoker is over 230*F and the meat surface is dry. In comparison Sucrose, White, Brown and Turbinado Sugar have a higher Caramelization temp, 320*F, so along with being dry, need a higher temp to get the job done. This is why may Smoker's choose Turbinado Sugar because they can smoke at high temps and Not burn the sugar making the Bark bitter. Above 350*F and once the moisture is removed all sugar will burn fairly quickly...JJ