Great, Pav, thanks. I had forgotten about the different ratio between U.S. and American manufacture. Still puzzled why I seem to get such fast renneting, as a general rule, when actually using a 9 ml/cwt ratio.
Edit: Whoops, our paths crossed. Thanks, Pav. Will re-tool and see what I come up with. I know that going with 6.2, I was in the 20 minute range, but that is with my new milk, and a fairly consistent incoming pH of 6.63-6.64. I'll try 6.78, 3.5 ml single strength veal rennet/6 gallons, and see if I can't get to the 12-15 min. optima.