I make a habit of checking the general state of tune on most vehicles that come into my shop. Certainly, I've seen well-done plugs of all brands, but it seems that Autolite plugs (which account for at least 30%, maybe closer to 50% when the plugs aren't OE) always have more electrode wear without corresponding external indication of age than other brands, and I seem to get as much or more improvement after replacing a set of plugs (I use NGK whenever possible) when Autolite is what came out vs. other brands. Is it just my own dislike of cheap parts and the kind of people that put them in (and don't get them tight, or get them too tight, or compliment them with cheap filters, or... I digress) or are Autolite plugs really a poor quality part in general?