Quick update--on 11/23/14 I took the plunge and bought the larger tires I wanted in size 215/60/16. The tires fit fine with no rubbing and fill up the wheel wells nicely. In fact, two locals that saw my 'B first with the original tires and then later with the larger tires both commented (separately) how much better it looked after I lowered it. Since I did not lower it (it actually sits .7" higher) I was flattered.
Since then, I've only been able to put 110 miles on it but I have not experienced any problems whatsoever. No tire rubbing anywhere in any driving situation and no ABS, trac control, or any other electronic-related issues to report. Even some spirited performance driving failed to induce any problems (thank goodness, lol).
I'll post some pics as soon as I can. Unfortunately, it's dark when I leave for work and is dark again when I return home. I'll have to wait for a weekend to get some daylight pics. Such is the life in December in Northeast Ohio during the Winter. Thank you to everyone who took the time to respond!