Is it possible to tell from the tail?

I've read some threads about being able to tell a pullet from a cockerel by the way they hold their tail. I have 2 EE pullets, one I hatched and one that is supposed to be sexed.

Pullet hatched: bigger, friendlier and a wide-spread tail when off balance.

Pullet" sexed": significantly smaller, more flighty and a pointed tail that does not flail when offbalance.

I know enough to say that if it crows its a boy. Pointy "saddle" feathers = boy.

Any other way to tell?