In regard to the feathering on the leg, they are usually referred to as feather stubs on the leg and occur on clean-legged breeds occasionally. I've seen them on Sussex and Welsummers before in person. When showing birds, it is a disqualification and shouldn't be selected for when breeding them. In this case adding her back into your project will introduce a higher propensity for feather stubs, especially if you are going to be using sibling crossings or crossing back to the parents to fix patterns within the genes.