Ha, I created that thread. I have used Vienna before, I get more of a toast character from Vienna. I think a lot of breweries use Munich in their helles. But I'm all for brewing helles whenever I can, so why not try it all...I have never had a beer look that clear in the carboy. I love Munich helles though. Can't seem to get the flavor that Weihenstephaner Premium has. I wonder if some of that is oxidation, but whatever it is, I love it. It's almost honey-like.
OT, kinda... I'm sure you've seen "That German Lager Flavor" thread on here, it's a good read if you haven't.
"Honey-like" is something I associate with Vienna malt. This one definitely has it (and was brewed with a bit of Vienna). If it was a touch drier it'd be a perfect beer.
I would doubt that Weihenstephaner Premium is 100% pils malt. The flavor I get from that beer is more than that, for sure.