[Ace]

It's not a DPS loss from using DE from the front if you can't hit your positional. All your alternatives cost you potency, and you end up with a slashing debuff either way, so please explain to me how it could lose DPS? I've yet to see any theorycrafting support this..
The only situation I could think of is if you have an upcoming phase change and you'll end up coincidentally dropping Huton, which is incidentally the only way I can see Huton being dropped currently.. could that be true? Or do you see some other way Huton is being dropped for you?

I should mention that if you are seeing yourself get low on Huton, and there is a phase coming up that will cause you a hard time refreshing with AC, you should stick to the flank to force a refresh.
The profile has to perform a balancing act of cutting buffs close enough to maximize DPS, but with enough leeway to allow for weird phase gaps, so some manual management of this effort is required.
This same logic is true for AE, in that if you are good on all your buffs, you need to move to the rear in order to perform AE.

I have been out of town all week, but I was cooking up a solution for debuffs/dots all week, and it will be up as soon as I can implement and re-test (and get somebody to push the update).