Kevin,
When you do spares at 300º are you referring to grate temp or lid temp? Also, if you foil during a 300º cook, what are your average times? I've been cooking closer to 275 lid temp and going 4:15 out of foil, 45 foiled, 1 hour out of foil. Still tweaking, but I'm getting close. I know each rack is different, but I'm looking for baselines.
Thanks,
Pat