not the same
Same hulls, yes, but very different boats. A center cockpit boat has a much higher center of gravity, and will therefor be more tender (tippy)than the aft-cockpit version of the same hull. Comparison of a 410 and 420 also reveals a completely different rig. With its fraction rig, lighter weight and aft cockpit, the 410 will outperform the 420. But you'll have to crawl into bed on your knees. Something for everybody. In an center-cockpit version you'll have full-headroom aft cabin with a centerline, walk-around berth. For better or worse, you'll also have an engine room, which will usually result in less noise when motoring. In an aft-cockpit version, you'll have a nicer cockpit, a larger galley, easier engine access and higher overall performance. Your pick.