I know you’re probably waiting for the man himself, but I encourage you to look at this topic in the forum. The Fostex Biodynamic headphones have a “cult following” here and a lot of people can help you if you are looking for one and/or have some doubts.
Also, welcome to you and all the new people posting here. The community is great and very helpful, so search out and don’t be afraid of asking in the topics.