Forum:Meklord Emperors Ruling Question

The effect to special summon a meklord emperor from the hand are optional effects that you can trigger when a face-up monster you control is destroyed by a card effect and sent to the graveyard. If I have a card that would trigger when a monster is destroyed by a card effect, like the new gadgets or supply squad, will supply squad or the new gadget be forced to trigger first, as they don't need the monster to hit the graveyard so their conditions were met before the Emperors' conditions?

If so, can I chain the Emperors' effect to special summon themselves to those effects using the Simultaneous Effects Go On Chain, even though it is not the same condition and therefore, was not met at the same specific moment?

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