I've never used it, as expensive lures don't live long where I fish, just the same as my cheaper home-made ones.
I have a story similar to Overbored though. Like most others on the ocean fluke grounds I normally fish the GULP! 6" grubs, in the usual colors, pink, white, salmon, nook chicken, etc. Two seasons ago I did pick up one bag of grubs in the "Sardine" color. Hey, why not? They looked good to me! To the fluke? Eh, turns out not so much.
I gave them a solid try nearly every trip over that whole season - nothing, barely a tap on them. It became something of a running joke - put on the Sardine color and catch zip. Meanwhile, my "normal-colored" baits continually caught well.
Last trip of that season, and I think George, our site host and his long-time fishin' buddy, Katona Steve were on the boat. Right at the end of the trip I put on that useless Sardine color one last time. What the hell, the season was just about over. Anyway, it barely hit the bottom and a solid thump. I remember turning to George and saying "Wow, what a hit!"
One-one thousand, two-one thousand, three-one thousand, I lifted the tip slightly and felt the weight. Slammed the hook home and after a spirited deep water fluke battle George slid the net under a nice 7lb+ best-of-the-season fish. Up to that point the only fish that I ever caught on that color too. Still is, as far as I can remember.
So my point is that you never know about lures that don't appear to be effective - until they are. Just gotta have some patience. Or maybe stubbornness, one or the other, I guess.
Oh, and I made it a point this Spring to make sure I have one bag of Sardine grubs on the boat. Like I said, ya neva know . . .