The above is dead on.
I know it sounds like a bit of a cop-out to say keep trying, but it's the truth. Judging should be objective, but is often more subjective. Give yourself a couple more attempts before changing anything. Then, after you've turned in your third CONSISTENT entry make slight changes.
Last year our tenderness scores were low. By shifting where on the cooker where we prepared them made all the difference.
Race Fast, Cook Slow, and Enjoy Life!
If it don't come off a smoker, it's just a side dish!
Lang 60 Patio (The Mistress), Black Stainless Lang 36 (Little Princess), Large BGE (Ramona), Big Green UDS (Cottage Cooker), Brinkman SnP Pro (Little Bubba-Retired), 8 Burner Gasser, 3 - 22.5" & 1 - 18" (circa 1975) Weber Grills, & a Weber Smoky Joe.