Hpp_ <= 99%

I would like autoexec to preform a trigger spell anytime I drop bellow 100% HP. I looked at all the autoexec options, and know there is no hpplt (except 76/75).

What I thought of as a work around was..
<register event="criticalhp|hpp_2*|hpp_3*|hpp_4*|hpp_5*|hpp_6*|hpp_7*|hpp_8*|hpp_9*">

The above was also just a "would this work?". It does seem impractical. Mostly because I just want it to trigger when I go from 100% to anything <.
But this does nothing when I drop bellow 100%.
How would I go about this, correctly?

Why would you even want to do this? If you're swapping gear, you're going to be under 100% a lot (unless none of your gear has HP or somehow has the exact same amount).

i'm no expert on xml coding, but how about changing the formula around so hpplt have it determine if hp = not 100%?

AutoExec =/= Spellcast, the only hpplt rule for AE is hpplt76.

Would be slightly cleaner to do <register event="hppt76|hpp_7*|hpp_8*|hpp_9*">, but that wouldn't fix any issues you're having with that code and it would still trigger every time your hp changed regardless of the base value. The only thing that comes to mind is pairing <register event="hpp_*"> with a Spellcast rule that grabs your current HP%, compares it to your prior value, then executes whatever rule if appropriate and stores the "new" value in the "old" variable.

EDIT: I didn't explain that well at all, let me write up something for it real quick.

I get the jist of what you are saying. This request is based on something just as convoluted. I am helping a friend make a rule for Scarlet Delirium. First thing that came to mind was what I use for sublimation, but SD is the same buff Active or Charged.

So not quite what I said originally, but like I said I didn't explain it that well anyway. Note that this will trigger every time your HP% changes, so you'd potentially need to adjust rule handling in other parts of your xml to prevent it overriding prior rules still in progress (midcast/aftercast swaps) since Spellcast doesn't multithread anything except <cmd> inputs.

Ok thank you very much for that.