How to Dragoon per Second: A DPS Paradigm

[Nominous]

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https://www.youtube.com/watch?v=Gji_CLajHgo

That was the A5S dummy. Level 214, with a Sephirot weapon. No food, no pot, only 9 seconds left. Tried again with Baked Pipira HQ, got like 10 seconds left.
http://na.finalfantasyxiv.com/lodest...acter/2801595/
^ Lodestone for gear. I wasn't able to participate in Savage, due to a static implosion. And forget about Diadem or crafted.

A couple of things to note-
I'm still fuzzy on the 2GK/BfB thing, as it never really seems to work for me how it's been explained. I held the GK and it still didn't really work out.
I shouldn't have used Life Surge the way I did deep in since it hung up one of my skills, but I thought it'd fit.
I'm on a controller, so cycling hotbars is extremely easy as you see. I'm NEVER missing one of my cooldowns coming up, EVER.

And yet still, I'm at like 1540-1550 or something DPS (if the calculator is to be believed) without a pot. It just confuses me. How can you literally be like 200+ higher than me? I'd give maybe 30-50 to the pot, but after that, where is the remaining 100+? I don't see any flaw glaring enough in my rotation, and even if there were, I'd be just as confused as to how that'd come out to 100 DPS lost.

I mean, I'm comfortable with my DPS, I guess. I rank pretty well on FFlogs for Sephirot EX (for my server anyway), for not being given any special treatment, and using no pots, but... It just irks me that there's clearly something holding me back from doing even higher numbers, and it's not even remotely clear as to what.

I see you hold cooldowns (like internal release, life surge, Dragon Fire, Spineshatter) at certain points, and for a good while. But I was under the impression that, from what this thread's shown me anyways, that it's hardly ever something you want to do (if given full uptime). Holding Life Surge made no real sense, nor did the internal release. Perhaps these are the said "Optimizations" for this specific 3 min parse?