Seems fair to me, only changing EQ with BB on the last slot I think (so damn much balooning around =/).Ok how about this:
For the mixed attacker we have Brick Break and MultiScale as the primary option and say this works very well as a lead. Then we have Superpower and Inner Focus slashed and we say if you are not using this dragonite as a lead Superpower and Innerfocus is a good alternative (roost also becomes a nice option) due to the prevalence of SS and SR negating Multiscale (or something along these lines and mention how superpower is great for blissey / chansey (DM + superpower might 2HKO blissey but I'm not sure?)). Don't even slash leftovers, Dragonite needs the power of LO.
So the Mixnite set would look something like this:
[SET]
Mixed Attacker
move 1: Draco Meteor
move 2: Extreme Speed / Roost
move 3: Fire Blast
move 4: Brick Break / Superpower / Thunderbolt
ability: Multi Scale / Inner Focus
item: Life Orb / Leftovers
nature: Rash
EVs: 116 Atk / 200 SpA / 192 Spe
I'm fine with LO staying a slash on bulky DD but please heavily emphasise leftovers. Last slot in the offensive DD should probably be "Earthquake / Brick Break / Extremespeed" and mention waterfall in AC to 2HKO gliscor without locking yourself into outrage.
For the CB set the third slash should probably be:
move 3: Dragon Claw / Earthquake / Waterfall.
Heatran's the only thing resisting dragon/fire and you can power through that with outrage if necessary. Considering the impeccable coverage you already get Dragon Claw is probably the best move in the third slot so you can fire off powerful dragon moves without locking yourself in early game.
Also @ Delta I tried the parashuffler set and it was really underwhelming; it could paralyze and get up to 100% but if it wants to phaze it has to take a hit anyway and its gonna face the next thing out without having multiscale active which is why I suggested running heal bell so it can support the team more. Basically, multiscale is good on that dnite for when it first comes out but after that it's not so great "multiscale-wise".
The problem I see with EQ is that there's not much in this metagame that needs EQ desperatly, what gets hit by it will be probably floating anyway cept for Shandelure and Terakion and even then, there are many other ways of OHKO them without EQ.