When I activate EX9-070 [Meat]'s <Delay> effect and would digivolve my Digimon into this card with the digivolution cost reduced by 2, can I activate this card's 1st effect and further reduce the digivolution cost by 2?

Can I place either my Digimon or an opponent's Digimon as the top security card for this card's [When Digivolving] [When Attacking] effect?