A great question and thanks for the comment. You have two options (among many) that we leverage. The first, is that your two sides will cook faster. It is common that while the center cut is medium rare or rare, your sides will cook to medium or higher. SO you can plan to serve those sides to anyone wanting a higher cooking temp. The other option is exactly your comment. Slice and then give a quick grill or cast iron grill if inside to bring up that temp faster. The oven will take too long IMO. In the rare case you are the outlier in wanting it cooked lower, you can always keep going on your cook, temping in three places (the sides, and center) so you can keep the center cut to your liking. Hope that helps!!