Does he strictly hunt for bucks? If so, encourage him to shoot does as well. I'm not saying that it is OK to wound does....not by any means so anyone reading this please dont misinterpret me. What I am saying is that he may not be as "nervous" or excited about does and if he gets a few good kills under his belt he would be less likely to be nervous when mr. big comes by.

I believe there is no subsitute for the real thing.

Just an idea that I believe has helped me.