Jay - sure I have, actually tried running the temperature up to about 325 or so. Take it to about 190, losely wrap and keep warm. Makes great slices, AND has an unadulterated pork flavor. 190 is typically higher than you would take a butt to get slices by conventional wisdom, but since your cooking at higher temperatures, it doesn't stay in the "breakdown" stage as long, and still holds together. I've never done them at that high of heat without the intention to slice. Might not pull the same as low and slow, but you could always chop.