Great examples, Steve -- and I love both of those seedlings! I also know James also got a real beauty from (I think) a cross of DRAGONFLY DAWN X WAVES OF JOY? Is that correct, James? And Becky also has a gorgeous seedling that I think came from a cross of two from the Trimmers, and it might be the one in her avatar.
But I do seem to remember that advice when I make crosses, because crossing the Trimmers' beautiful patterns with each other just seems natural to me but so far I've tried to avoid doing so and instead make a cross with another hybridizer's patterned daylily -- although when I go into a pollenating frenzy who knows what will happen...