Yep - it was pretty funny watching them trying to get a pint out of the second keg too !
In terms of flavour, I had a half of straight Rogers and a half of the Topaz together and while there was a subtle difference in flavour, after the first few sips there was really nothing in it. The same was the case with the second. I think I can safely speak for the 5 or 6 of us that sat together discussing it that it was barely worth the drive - unfortunatley. ( apologies if I'm putting incorrect words into peoples mouths). There was a difference in carbonation (obviously), and that possibly contributed to the differences as much as the hops.
I think it worked out to be about a gram per litre dry hopping which is lightwieght in anyones langauge. So it was a bit of a shame - interesting though and is something that I hope LCs does on a more regular basis cos it was a nice way to spend an hour or so on a beautiful WA evening.