I'd love to have an analogy to use when talking with teachers/administrators who don't understand asynchrony in gifted students. I'm specifically thinking of statements like, "Well, dd's handwriting isn't good enough to let her advance in reading," or "We can't teach dd anything new in math until she can do X math facts in one minute."
Holding a child back because her motor skills/processing speed haven't caught up to her other abilities is like...
Keeping a good swimmer in the wading pool until the water isn't over her head?
Not letting Mozart play the piano until his feet can reach the pedals?
Any other suggestions?