Probably an old question, but gonna ask anyway.
Fishing for trout,if your using a tapered leader do you use tippet as well?

I always have and have never had a problem, other then tying a weak knot once in a while and losing the tippet to a larger fish.
But I just cannot see using straight leader to the fly, seems to me that there is just too much waste after a couple of fly changes.
Anyone?