Common problem. A put for example is 1.00 bid at 1.05, light on the offer. I go to lift the offer on "best" and now the market locks at 1.05 with me the bid (always on ISE) and another exchange still offered. It happens even when the offered exchange has auto-ex functioning. How can best not be best. If someone other then ISE is offered should I not be routed there first.