What separates a top-quartile self-serve funnel from an average one, stage by stage?

The gap is almost never at the top. Average and excellent companies convert visitors to signups within a couple of points of each other, but the great ones activate at roughly double the rate and it compounds through every stage after. On free to paid, a strong free trial funnel lands near the mid-teens while freemium sits in single digits, so comparing yourself to the wrong model will make a healthy business look broken. The other quiet separator is net revenue retention, because top-quartile PLG companies grow meaningfully from existing accounts expanding on their own, which means their pricing is tied to something that grows with the customer. If you benchmark one thing, benchmark activation, because it is both the largest gap and the most fixable.