Wow, this is some amazing help from everyone, thank you!! Most stuff explained makes total sense now, so to keep my replies from being an essay, I figured I would just focus on things that I'm still not 100% on.
First thing was, I was able to try each opener last night, and I definitely saw an improvement already. Yay! Only thing is, for the openers that had Perfect Balance, I kept hitting a snag where PB would run out, and my form would drop mid combo, messing up the rest of the opener. I tried many times to see if it was a timing issue, but I couldn't manage to get around that block. Even just standing in one spot and hitting skills just before cd to try and get through them wasn't reliably quick enough (very annoying to have to wait for PB's cd every time. Don't suppose there's a way around this for practicing? lol). Some of the openers had oGCD skills sprinkled in between the combos, but even when I took those out to test, something's just not working right, lol. Now I'm even more worried about having less SKS.
For example, the opener would be going smoothly, then I would get to RoF (tried with IR and without), DK, TS, and just about after hitting TS, PB would drop and I couldn't use Dem or Snap. I did a little frankenstein-ing of the openers to try and shift the combo just beyond PB's drop so I could do it, but still working on it. I'm liking the RoF/and or IR just before DK and TS, and then getting a second Dem in there so they all get the buff, as suggested. Speed isn't a make or break for MNK, I just assumed I wasn't the speed I was supposed to be. Hard to explain all this in just text, sorry. Basically, my concern is getting around PB dropping my form. I guess I never realized it overrides whatever forms the actual skills give me while active. What am I doing wrong?
My only other question (that I can remember) was, are openers more just reserved for bosses? I would assume going through an opener for every little dungeon mob/add might be a bit overkill, not entirely possible, so how exactly are those treated? Just normal rotation? I know it can depend on which mob/add, but just curious.
To NintenPyjak64: I plan on watching that video! Haven't had a chance to today xD
Thanks again to you all taking the time to help me out :P It was fun to see how well the openers boosted me.