I have tried to get a water analysis from my water supplier - still waiting !!!!
The odd time I have mucked up and expected dire results (and got them I might add) ...
I seem to have a lot to learn from this whole process (I said before that I only have about 10 - 12 brews under my belt so far) so it is a continual learning process with me.
Having said that, I have made a Rauchbier that has great lacing - although dissapating toward the bottom - that I am happy with.