Talon: Movespeed Quints Vs. AD Quints Vs. ArmorPen Quints

I play Talon a lot, and i keep debating on his quints. I've spoken to challenger and diamond players (I'm diamond myself) and we all run different quints on talon but id like to really know the math behind it all.

Reasons for MS Quints: Roaming is talon's key feature. So having MS quints help him dodge mages skill shots easily and roam bot & get fed. He doesn't NEED the extra armor pen or AD because he builds those items anyway. Cons: No extra damage

Reason for AD Quints: Helps his CS and higher his damage early game. Cons: Talon's early game damage isn't high at all anyway, so the extra AD won't impact that much.

Reason for Armor Pen Quints: Because he scales with Armor Pen. Cons: I think AD actually gives more damage early game than Armor pen until like 7 supposedly. Also, you're gonna build a ton of armor pen anyway + u already have armor pen marks.

So any verdict?