No probs. I panned this tea myself, actually--told people not to buy it. I regret doing that today. In any event, reviews like yours are not uncommon at all. MarshalN panned this tea way back when it came out. A taiwanese teablogger had a similar issue about the nature of the flavor much more recently. Anyways, one thing I should warn you, is that LBZ does not retain high notes as it ages. They get all walnuts, aged/fermented stone fruits--more apricots than plums, deep woods, and mellow sweetness. The huigans lessens, and the activity in the mouth is less emphathetic. The niceness of aged banzhang materials tends to be about mouthcoats of shimmering sweet flavors, kinda hard to describe, except as an aged huigan that spills instead of spouts. The young tea is relatively different. Never had an old banzhang with that strong orchid note.
Anyways, for me, the sample I had of this tea sold it to me in a way I never got from a cake session. However, whenever I compared leaves from the cake to another lao banzhang, this XZH wins. The taste is more sophisticated than most LBZ, it's one of the few LBZ that's durable, and I like the creeping qi feel. For sure, I haven't had enough lao banzhangs, but we all ran out of time to cheaply investigate what's good and what's not. Feel very, very, lucky you got to try something Zhou Yu would treasure, you bastard. On the other hand, day before yesterday, and yesterday, I was drinking some of that Nadacha ManNuo, which can be very much like LBZ, and I had a blast, with the good ole Elephant Stomp Qi that was orgasmic to boot. There is always a way to get your fix.
The 2005 YQH is flaky, but that one is awesome when you get it to go, as well. How come you didn't manage to get the 2004? I've not had bad sessions with that one, and it's blow-your-bum-out-the-water when it's good.