Even breeds whose females have large wattles and combs don't get them until they are older,Yes most breeds, but if you look up the hens of the Ayam Ketawa, you'll notice, they also have giant waddles even when hens. They extend out passed their heads. Until they're much older and the waddles get much larger, its near impossible to tell since the difference comes from the overall size and not length. At least this is what I've been told today.
that's why the best time to sex them is 4-8 weeks.
Got any pics from around that age?