I couldn't have said it better, Fra.
I'd like to add, alot of subtle things can make for good peacocking. Alot of my friends that I often sarge with usually wear the same style shoe, or same color (White is very common). I ordered these 2 1/2 inch Frye Heel Brown Boots. Shoes are commonly noticed by women, and I must say honestly, 8 times out of 10, I will hear "Hey cool boots by the way", or "I like your shoes". I was even on my cell once and I had to step out of the set we were gaming, so my friend took over for a sec (Hey it was an important call

), so I overheard one of the HB's say, "Hey tell your friend I love his boots". She actually strayed away from the conversation and had to tell me in one way or another.
I actually have quite a similiar style to Fra concerning the rocker look.
My MAIN GOAL is to make the HB(s) wonder,
WHO IS HE? instead of the average Hollister/Abercrombie AFC. Women ALWAYS ask me what I do when they take one good look at my attire, and the best part is, they sum you up very quickly once you approach.
When you peacock successfully it can make for:
-Easier Conversation
-More Interest from the HB (Granted, you explain what each peice is there for.)
-More things to talk about (Multiple-threading)
Mystery says, in his first episode of the PUA 2. He shows his two hands with all the jewelery on it and goes to each little peice and says, "What's this for, what's this one for, what's this for, what does this one mean". That's what girls generally have inside their minds.
Ask yourself, what do you do that you can make interesting about yourself? I am personally in a hard/heavy/classic rock band, so I naturally wear that kind of stuff, and act like it.
Look at the situation through a different perspective -
You and 5 guys are walking side by side. You all have the exact same shirt and jeans/shorts on. How can you show you're different? With these limitations, how can you show that you're one of a kind? That's what alot of Hollister/Abercrombie guys run into. This situation happens on a nearly constant basis. Think to yourself, if you saw an HB9 let's say, and you wanted her attention badly, would she catch
YOU out of everyone else? If she can find you out of the group while trying to peacock, but with those limitations, think of what you can do when you DON'T wear everything they are. That's when you can almost forget about openers, scince they'll be doing that step for you.