I've considered this as well, especially since the selection of quality filters with 82mm diameters is limited (e.g. no ND filters >5 stops, etc.). One thing to consider is the shortest focal length you'll use - Cokin recommends the Z-Pro holder for 20mm and longer (FF), so if you'll use wider than that (e.g. 16-35mm on FF or 10-22mm on 1.6x), you might need the X-Pro holder and wider filters.