Just looking at the demonology priority order. Soulburn is only limited by if metamorphosis is up, but you can cast metamorphosis during heroism / bloodlust so there might be a soulburn wasted for the demonology profile.

I assume soulburn is capped at 3 per fight, but not sure if its been tested if its even worth doing the soulburn / soul harvest trick before combat.

Is there anyway in simcraft to increase how many soul shards we have, like have it set to 4 for this trick, or maybe unlimited amount that would be limited to the fight duration, which would assume there was some add that you could drain soul to get more shards.

The dps increase would probably be minimal anyway.

Pretty much every add I tried gives me shards. The LK Adds (even Vile Spirits), Halion, Saurfang, Valithria...
I have yet to see an add that does not give shards.

I haven't raided for a while, but last time I was in ICC I was getting shards from shambling horrors and Raging Spirits, which could have changed which is why I was wondering. Not many fights are that long. I also recall a fight on beta that I was getting them back on, but I forget now since its been down a while now.

Also I was just wondering if there was a way I could test it myself with simcraft rather than updating the original post with this as I assumed it would be ~50dps at best per extra soulburn.

I see in the warlock file there is a resource for 3 shards, haven't looked to see if it gets decremented anywhere though.

To Zakalwe;

Wouldnt it be better to itemize the demo and destro profiles so they reach 50% haste and get 8 ticks from Immolate?
With Imp SF, Dark intent and 5% raidbuff we "only" need 2639 haste to get that extra tick and that will probably be a huge boost to those profiles? I am terrible at simcraft myself but played around with the gear availible and with reforging I had no problem finding some gearcombos with both hit cap and 2639 haste. Considering the poor 4-set bonus for destro we can focus on obtaining gear with haste and hit and just go for legs and shoulders as T11. I assume the BiS lists will look very different for destro and affli due to scale factors.

Also a general question about Immolate and Imp SF; We need to have the Imp SF buff up before applying Immo to get that extra tick correct? Its our current haste when we apply Immo that counts for the whole duration?