I'm still waiting to hear how resting in the fridge after thaw works...  But the key is to let them rest at least 24-48 hours before freezing.  For those that were frozen too soon separate the legs and thighs, make a stock out of the neck and back.  Then use the stock to braise the leg quarters and then roast the breast in either an old graniteware roasting pan or an aluminum foil tent, with maybe a cup of stock until 155 degrees internal temp. Brineing can help--but is more for flavor than tenderness.  When I brine I use equal parts salt and honey, celery, onions, carrots, lemons, limes, oranges, thyme, sage, oregano, and Rosemary.  And of course whole pepper corns.