why he shouldn't be able to begin with he is a cyborg. and the sending lasers doesn't have to do with his DF or hybrid form. and by the way he transformed himself not for Marco but for Sanji. so why should he transfrom back :D just to be King's equal?
who cares what mode are they on. Katakuri kill a man using his ultimate skill while smoothie kill the same man by one kick only. Would u say smoothie stronger than kata if they fight side by side assuming u didnt know them or never see their fiight?
Wings can't be more than other or else you can't fly. That is the logic on wings. They are equals. Oda don't need to put the word to know what he mean on 'Wings'. They are his top guys and are equals to each other while Luffy is above them.