Classic flies

Lately I have been tempted by the idea of classic flies. This is somewhat in contrast to my personal view of fly tying. I am very practical and simplistic when it comes to fly patterns.

Below is an example of my streamers. These are Supertinseli patterns. They are easy to tie (about 3-4 minutes per fly), use only artificial materials and they are killers when it comes to effectiveness.

From Fly-patterns

But would it feel better if I would caught a big trout with the Grey Ghost instead? Or how about a classic winged wet fly instead of POPA Caddis?