Was your EB1 140 approved? If yes, why did you bother with EB2 485? If it's pending, using EB2 EAD sounds better. I don't know whether you need to cancel the other EAD if you don't plan to use it.
i submitted 140 and 485 for the Eb1 case concurrently, same week as the Eb2 485. then the 140 got approved. at that time, i am not sure if my eb1 140 will be approved or not, so submit eb2 485 as well.