Golden Sex Links... I think I may have a Roo.

I purchased pullets on easter... the girls are all doing great, but I have suspicions that one of the golden sex links is not a pullet. As chicks, they looked like pullets should. In fact, when I was choosing them, I chose the darker marked in the store, and I'm glad I did that, because lighter would have meant boys for sure according to the way they're sexed at hatching.
HOWEVER.
One of them has a few traits that worry me from time to time...
1. Thicker legs. Which now seems to have evened itself out.
2. Longer/Higher comb. Which I'm not SURE is a true red flag with these guys seeing as they are crossed with barred rocks, and BR hens have pretty big combs compared to other breeds.
3. The one I'm worried about has some tailfeathers that are starting to look curved. None of the other feathers have the characteristic pointedness that roos have...
In combination with these physical signs, the pullet in question recently displayed with puffed neck feathers at the other pullets during feeding, and did a fake charge.
Here are a few photos... wish they would sit still better for all this... lol
Here are tail feathers. The one in the back has the "longer" tail with curve. This is also the chick who lost it's tail feathers just after they came in when the others started picking on it, and ate them.

Here's a poor example of their comb differences.

any votes? I would really appreciate opinions from some pros. Looking at photos of adult versions of these on line, their feathering both looks very pullet... so I'm just not SURE!

I think most red sex link roos are white with red splotches on their wings.

That's what the images on line show... and as chicks they are MUCH more pale than any of mine were as chicks... I'm just so paranoid I'll end up with a roo like I did the LAST time I got pullets... lol

Little girl chickens chest bump, fluff up and charge just like little boy chickens.

I think you have pullets.

I knew they did... and it wasn't the bumping that scared me... I hadn't seen any of them fluffing yet, and MAN!! It looks JUST like our big boy rooster! lol I'm hoping I'm just scaring myself. lol I had a Barred Rock that we thought was female, and I conveniently tried to ignore all the signs that he was a he... until the unavoidable crowing started. lol

Just needed some reassurance that I'm not "overlooking" the obvious.

Thanks for the replies so far! Any other takers on advice?

They're pullets. I've seen a lot of cases where some RSL's develop a lot faster than others, even amongst the same hatch. Perhaps you'll get earlier eggs from her

pullet

Thanks so much you guys!! After I posted this, and started looking on line, I started to think I was just being paranoid... it's good to get confirmation from other people who know what their talking about!