Turn 9 text guide (for those who prefer non-video guides)

[Ellatrix]

You have to check the debuff because sometimes you will get ice and dont need to get out of the "fire in".

"You have to check the debuff". This is exactly my point. You ALWAYS go out, even if you don't explicitly need to. One less thing to check, one less thing to possibly go wrong. Doing it this way, the ONLY debuff you have to check for is Thunder. You can completely ignore Fire and Ice debuffs - just Fire out on odds, Fire in on evens.

Source: I've killed it far more than you have, and group consensus between 3 statics of friends with over 70 combined kills is the above.