1. Does "cord trailing" mean a very fine thread between 1/8 and at very most 1/2 inch long that's gone in 1-2 days? If so, no worries.
2. If a four-toed is bred to a five-toed, you'll get (some) five-toed. This is something for which you can cull at the incubator door.
If you have two pullets and three cockerels, choose the the two strongest cockerels and pair each with a pullet. Use your standard and select for ways in which the one helps to compensate for lacks in the other. Then hatch as many as you can raise well from the two pairs and be careful to toe-punch so that you keep track of the lineage of each chick. From here, you'll be able to do a lot next year.