Prep the tails by cutting into the top, lengthwise and removing the intestinal tract and expose the flesh. Be super careful, the tail is slippery!!!
Grill 2-3 minutes upside down the flip over cooking indirectly then hit them with butter or olive oil and some Lawry's. Cook 7-10 more minutes until finished.
Jon's secret trick that's not so secret anymore. Throw some lemon slices on the grill to heat them up then squeeze onto the tails just before you take them off. Don't cook the lemons too much as they'll lose flavor. The seared wedges enhance the presentation as well.