Thanks for the response. Since my plan (which could change, I suppose) is to stick with the Subie rims, and since YOUR clearances are very tight at the front even with tires that are somewhat worn, it would probably be prudent for me to drop down to 205/45 - 16 on the front, which will give me a tire diameter of 23.3", well under the 24" max that FFR recommends. This puts me 2/5 of an inch closer to the ground, which I don't much care for, given that I will have a front splitter, which further reduces my ground clearance. I suppose I can find a way to raise it back up again with suspension adjustments, or some sort of shim......
Apologies for pulling your build thread off topic.