Ok, now I am more confused. (BTW, unusual routing, but I REFUSE to step on US...and IAD times didnt work out due to sold out flight). Back to my confusion.

According to the E500 thread, it doesnt say anything about same flight numbers. I am on PIT-ORD #483, ORD-EWR #646.

So...the question remains. IF all u/gs clear before checkin...I should get ONE E500 pulled...correct???