Those darn EE`s keep us guessing. My vote is for roo. I have a beautiful little grey with a similar comb at the same age. He hasn`t crowed but I am pretty sure we both have roos.
Here is a photo of an EE pullet comb for comparison...she is younger by a couple weeks.
Wow I guess that it is pretty much certain that shirley is really a sherlock...Thanks everyone..I will let you know if you are all right when I find out for sure..Any other opinions are appreciated..