From what I have seen, there has been a general movement in cresteds toward smaller animals with the advent of those new colors. The line breeding that generated them seems to have had a side effect to dwarf the general population. Not knocking it, I like the new colors, produce ones myself. But all of my colorful gex tend to be on the smaller side.
My original pair (back when $$$ was needed just to have one) produced animals which were at least 25% bigger/heavier/more crest than what is common in the trade today. The down side was that they were plain in color. Currently I have set up my largest male with my largest female (unrelated), both of drab coloration to see what the offspring yield size wise. I plan to also set up a pair with my most colorful female (smaller) and a big male to see what that does. this will be on the long term since you have to raise a hatchling(s) to adult to see what is the result.
To put my blatherings and your inquiry in context I ask the following question. How would you quantify size ??? Is it the size of the crest scales, SVL, girth and/or weight ??? I have male cresteds (plain colored from original stock) that weigh 62 grams, never weighed a female, but they got every bit as big SVL, and females tend to run heavier in general.

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