CaseyP, WHERE are you fishing??? I do find it hard to believe you have NEVER caught a fish on a WB. Even in my novice days (the first 5 years) I nailed fish, yes including trout, on them. One of the nicest brookies I ever lost hit an olive/grizzly WB. Have you tried different colors/combinations? Even some wacky ones like chartreuse (popped a 10" largemouth on one myself tonight) or hot orange??
Of course, we all have our favorite flies, the ones that never fail us no matter what, and we have confidence in those more than any others. And also, of course, not everything works in every situation or body of water. My advice is to keep trying, with different colors/combinations and on different waters. If you're strictly a trout fisherman, I guarantee you one day you will slam into a BIG one on a WB - they generally don't take them gently. If you are like me and fish warm waters because, in my case, I am not close to ANY quality trout waters right now (and I don't give a SH*T what anyone says about Paint Creek, it's a CHUB stream with a marginal trout population), well, the WB is probably my best warmwater fly EVER (though my KBF gives it a major run for the money).
You know, if you just don't have confidence in this fly, don't bother with it, you will only be frustrated. Fish what you have confidence in and catch what you will on your own favorites. I assume you have been flinging flies long enough to have some favorites that you regularly do well on, so use them and nail 'em good!! And don't worry about what any one else says.
For me, though, the WB is a KILLER (though I do practice strict catch-and-release, so nobody really gets killed...).
Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...