AP ezreal reds?

So I know the standard for AP ezreal is Hybrid reds, but I'm smurfing on my side account and they cost way too freaking much so what do you think is better for AP ezreal, AD reds or magic pen reds? I think AD reds would give a better early game, but obviously the pen is better for later.

Been mostly screwing around as AP "support" ezreal and giving bot lanes Hell.