Let's get past the BS details. If you flew to Munich tonight (arriving in time for breakfast with a Hefeweizen as you walk through the MUC Airport Center and stop at Airbrau (I can never tell if they're open for breakfast. Our flight always gets in late, but there are a few people around there). Then took the regional into Munich and walked through old city and stopped for a Helles...would your beer taste just like that? That's the test. I completely agree with Marshall - it's not HOW you get there, it's getting there. But there seems to be an abundance of confusion about exactly what a Munich Helles actually tastes like. I am trying like hell to get there (and go to Germany enough to know what I'm after) and very little of the beer in the US marketed as Helles is like a Helles.
I've just read through the entire thread and WOW, I've lost my morning.
It's my understanding that all five senses impact your perception of taste, so I highly doubt that you'll ever brew anything that tastes just like that first sip after you've just flown into Munich and walked through the old city to find the right place to have a beer. Unless you pack some hombrew to take with you to sample side-by-side, you're relying on your memory of the taste of that beer. Memory is mutable, just as taste is influenced by your other senses. You'll never be able to capture in a bottle the experience you describe above. All you can really do is brew the best beer you can.
On the topic of this thread, I have no comments on no-chill brewing. I always have and will continue to chill my beer as quickly as I can. I will not, however, lose sleep over my Helles not tasting authentic as I now realize that's likely a common problem.