I read your blog in you previous post. Good stuff!
I agree on the cheap voltmeter resistance reading comment. With so many people subohming these days, they need to understand the difference between auto-ranging VOM's and those that aren't. I have several Harbor Freight $5 VOM's and one nicer one from Northern Tools around the house because I don't want to walk stairs to get to one when I need it. I have them in the truck, upstairs, in the basement, and on the first floor. They are all non-auto ranging or non-auto zeroing on ohms.
I see about .4 ohms lead resistance on all my non auto meters. For a sub ohmer, .4 extra ohms on the reading could make a critical difference. If you don't subtract lead resistance you could make a coil that read .5 ohms but was really a .1 ohm coil.
Thanks for pointing that out in your blog.