I purchased the Kanas Pro and they have burned in but the IT01s is still on a different level in overall sound.
Please describe how so. The best single dd I've yet to hear is Hifiman re2000 but I couldn't wear them comfortably. My current favorite dd is a toss up between Kanas pro and Xelento. While the z5000 is still used to satisfy my oneo in while basshead cravings.