I'm an options newbie and am wondering how folks get decent prices. Is it usually possible to split the spread halfway and get a fill within seconds? What volume is enough for a quick fill splitting the spread? If folks have a large order... say 50 contracts and up, do they typically test the current spread with 1 contract test trades to see how good a price they can get before putting in an order for the full much larger order? Many thanks for any help!