Well, pleased to report that round 2 went well. Linux, will try it again with animal rennet next time, but had already gotten the veggie rennet for this batch; used 1/5 drop (1 tbsp of a 1drop/5tbsp solution), with 1/4tsp CaCl; 12 hour set, very nice curd, clean break. Will look forward to FD and animal rennet - and, on getting a Craigslist reefer, a host of other cheeses, now.
Many thanks for the help, all.
Edit: 12 hours' drain, very pleased - pillowy mouthfeel, creamy, richly flavored; a good start. Again.