In a medium bowl, mix together dale's Seasoning, vinegar, lemon juice, mustard, honey, tarragon and garlic. Place chicken in marinade and turn until well coated. Cover and marinate in refrigerator for one hour, or overnight if desired, turning occasionally.
Remove chicken from refrigerator; discard marinade. Grill chicken over medium heat for 4 to 6 minutes on each side, or until cooked through.