Summoners abusing pet exploit on bosses

[glim]

Just to make things clear, it won't work if you resummon the same pet you were using. So Garuda -> Garuda will do nothing but Garuda -> Ifrit -> Garuda will reset her cooldowns. It's extremely mana and time inefficient and I don't see why a player would use it other than for the novelty of it.

I've tried, garuda -> contagion -> summon ifrit -> summon garuda, contagion still cd.

I've tried garuda -> contagion -> summon ifrit -> use ifrit spells -> summon garuda, contagion still cd.

I don't get what the video is trying to point out either.

EDIT: it works, it works if pet is on sic. instead of obey.

ADD: yeah, I'm thinking it's not worth it either, because of the double pet mechanic, maybe it would be worth it if it doesn't require pet switching, because you have to wait for the other pet to cast all it's cds before re-summoning garuda, -_- this can't even keep my bio up because of all the sic. waiting.