"Well regulated" in it's historical context doesn't mean anything close to what we think of as "regulation" today. The phrase means "functional" or "functioning

"Well regulated" in it's historical context doesn't mean anything close to what we think of as "regulation" today. The phrase means "functional" or "functioning". E.g. “If a liberal Education has formed in us well-regulated Appetites and worthy Inclinations.”, or "The equation of time … is the adjustment of the difference of time as shown by a well-regulated clock and a true sun dial.”