Thank you for the reply.
And I just noticed. I have a mistake in my post.
I meant to say, cocked hammer in the holster in order to make it easier.
And when I mean easier, I mean faster.
It isn't hard for me to rack the slide with the hammer down, but physics explains that it may help the movement to be more fluid.
I still have the same question. Is it allowed? or I break any rule?
thank you again.