I contacted the Customer Service of GSM Outdoors about the Secure-Ex sheats dulling the edge.
This is what I got as answer: "Hello,
Thank you for contacting GSM Outdoors.
We have started to use the Secure-Ex sheath that is strong and durable. This will give you years of hard service and keep your Master Tanto at your side. These are not designed to make any blade dull when pulling it in or out. These are designed to protect the blade for years of use.
If you have any further question or concerns, please email us."
The good news is they read and answer your mails. The bad news is they don't seem aware of this problem and will leave the Secure-ex sheats as they are.
This is what I got as answer: "Hello,
Thank you for contacting GSM Outdoors.
We have started to use the Secure-Ex sheath that is strong and durable. This will give you years of hard service and keep your Master Tanto at your side. These are not designed to make any blade dull when pulling it in or out. These are designed to protect the blade for years of use.
If you have any further question or concerns, please email us."
The good news is they read and answer your mails. The bad news is they don't seem aware of this problem and will leave the Secure-ex sheats as they are.