If you want a real treat, try your backstrap this way. Cut the backstrap into 2" thick pieces. Make your own marinade. I use 1/2 cup soysauce, 1/2 cup worcesteshire, garlic, black pepper, and any other spices you like. I add some crushed fresh ginger. Marinate in the fridge for at least 24 hours. Remove the pieces and wrap each in a strip of bacon, just like a filet mignon. Grill as you would a steak. Don't overcook, just till the bacon is done. Have experimented with this one for years. When I serve this to friends, they always ask where they can buy them! They always come out fork tender.