What I do is prepot + fireball until about 7 stacks (if i get a Hot Streak proc) or 5 stacks before i just use Fireblast or Phoenix to get a Hot Streak before going into the Combustion burst phase.
This has always given me 2.3mil damage for Wriggling Sinew (i865).
Some people do Fireball + Fireblast (if Fireball procs Heating up) then go straight into Combustion phase, the problem with me is that if i were to do this, Combustion+RoP fades before i can finish applying all 10 stacks since Pyro+Fireball counts as 1 stack.
Any comments on this? Because my method also nets 2.3mil dmg, which i assume is the "optimal" damage range for the i865 trinket. Do I need to adjust anything or just roll with it since the final damage is the same.
Also, do you guys hold off popping it to stack with Combustion? I don't stack if they're too far apart (like 30-40secs), I use Wriggling on cooldown, sometimes it aligns with 10secs difference then i'll use it with Combustion, but if it doesnt, I always make sure to end the stacks with RoP buff.