Just a short question. When I have HS up and afterwards I use PoM, does the Pyro eat the PoM buff? Or can I use it to get another instant Pyro? I ask this in combination with alter time. So I could possibly go
1. Get HS and HU
2. Pop Presence of Mind
3. Alter Time
4. First instant Pyro from HS
5. (Eventually second Pyro from HU the previous one critting)
6. Instant Pyro from PoM
7. Remove alter Time
8. Do 4 to 6 again
9. Have fun with combustion
Your first Pyro will use your instant Pyro proc, the second Pyro will use your PoM buff. If you're lucky you'll then get a third triggered from Heating Up + the first Pyro. Then cancel Alter Time and repeat.
Yes it is, and should be used that way every time you run with POM.
Whenever your alter time + POM + combustion are up, don't cast you HS pyro right away and wait for a fireball to crit, giving you a HU. You also could use your inferno blast in case of bad luck, to fish your HU.