Yeah, '98 was considered a bad year, but some of the best Zins I've ever had were '98s. I'm drinking a wonderful Ridge Lytton Springs right now. '98 generated tannic wines, and of course Topolos is another word for megatannic.

I guess I'm not surprised by your experience. My experience with Topolos is that they do reward time, and become at least ok, if not all that marvelous in my opinion.
John