I have many metal, glass, slate and crystal calls. I just got a Titanium in Bocote from John Sinclair. It's my favorite now. I have quite a few strikers and so far every striker I tried has worked beautiful. I was always partial to copper and aluminum and I still like them. Another thing about John's calls, if you use,a scuff pad, you do not have to worry about which direction you pull the striker. I also have a brass in Kingwood :from him and it's sweet too.