I started using strung saddle and had the same results as you. Just not enough quality feathers to be found.
I have now switched over to whiting american necks (thanks Russ) and I am never going back. By far the best stuff out there. A silver neck will tie up plenty of flies and they come in a ton of different colors. I also have a bunch of bronze necks that have a ton of quality hackle tips on them as well.