Last statement is very true, Oude. A while back when I was making smaller cheeses, I noticed a difference when I used one cow's milk compared to another's. Now I just mix it all to get the big batches so I don't notice so much.
Sailor, as far as adjustment, I didn't have you guys at the time so I didn't have a clue. Using the different milks for different cheeses is a great idea that I had not thought of though. I may try that when I attempt my first blue.