Over cooking them is about the only way I have made 1 tough but still great on flavor.A good maple shake on rub works wonders and keep a eye on them,when moisture puddles on top flip,3 rotations from the start and im done ,the last will be clear then let rest for 5 minutes or more.I like them better on the charcoal but fixed them on the gasser this week.also 1/2" thick is the thickness that I look for