I watched Joe Estrada in action at a gun/knife show today, being very patient and cordial with beginners, including children. It was very crowded and hectic, BTW. I bought a karambit trainer from him, and he was very honest with me about the long wait for a Strider Karambit, and advised me to buy one from another dealer if I could find one, since he had none available. He has no website, but is listed as a dealer on the Strider website, and is also a member of Bladeforums.