If you call a girl up and setup a date on _your_ terms based upon what you like to do and what you prefer, and know she'll like it too (and if she doesn't you have a backup plan) you're being a leader right there. You should do this for most of your dates if not all for a number of reasons I wont get into atm.
Neg hitting and C/F don't make her think "Oh, he's a leader"
Neg hitting is for knocking them of a pedestal if they think they are on one, (acting aloof, snooty, stuck up) and it works quite well. After they are off it (however they can jump back on!) there is no reason to neg hit and it can actually hurt you if it's out of context and doesn't jive with what's going on between you two. For instance if you're having a conversation about how Angelina Jolie is a super star slut and you all of a sudden throw a neg hit on her you're way off base...although a C/F comment ... as long as it's funny...would be ok in most cases.
C/F is for getting their emotions going, showing her that you're not intimidated by her, and that you are a fun guy, but shouldn't be used ALL the time IMO. Think of it as the salt on your steak dinner. I just haven't had the best responses when I've gone all out with C/F without having a good conversation about something or telling a great story...plus it's not part of my personality to act like that anyway.