Staining a Deck with new and old wood

Last year we replaced a large portion of our deck boards with pressure treated pine. We left the built in benches as they were still in decent shape. Now that the new wood has dried out, we used RAD stripper and brightener on the entire upper deck(doing the lower area next). We are going with TWP 1500 (pecan) for the stain. We tested 2 boards—one old and one new and the contrast between them is a lot more than we were anticipating. My question is—should we use a darker stain like dark oak on the new boards and use pecan on the old boards, do some sort of mix of the colors, or go with a different stain altogether? Thanks!