I run pretty standard
/dmb pull10
invocate takes it down to 5 seconds
prepot at 4
start casting pyroblast at 3
*if it crits I'll IB straight away to get my hot streak
otherwise, fireball until heating up
IB
POM
Alter Time
Hot streak
*if it crits I'll hot streak again
POM Pyro
Alter Time
Hot Streak
*If it crits I'll hot streak again
POM Pyro
*If it crits I'll IB again for a final hot streak
typically by this point my ignite size is between 60-100k
I will combust @ this point
*If multiple targets I'll refresh LB and IB to spread
Highest I've spiked on Stone Guard is 318k, Average spike on pull is around 160k-180k
It looks like a long process but it is really only like 10-12 seconds from boss pull.