Please help me sex my 4 chicks at 6 weeks

[Lyee]

If you could get a better close up of the EE comb, that might help. EE Roos have 3 rows of bumps. I can't zoom in enough on the pics above to see.

 

[Lyee]

If you could get a better close up of the EE comb, that might help. EE Roos have 3 rows of bumps. I can't zoom in enough on the pics above to see.

I finally got a better pic I think. 9 weeks now. Tail feathers have me concerned.