Very had to match unless you get the grapes from the same place. ALL chards come from the same grape. Only difference is the location. Ever seen all those chards? all tast a little different BUT the profile is the same. Look (search) for my sticky list on wine profiles here
This would depend on which kendall Jackson Chard you are alking about! If youre looking for that buttery Chard then a Mosti All Juice and the Battonage method is the way to go. Otherwise the RJS E.P Chard is the way to go IMO.