It turns out that the airport security lines broken down by expertise are now in place.
It worked well for me today. The shot is from checkpoint 1 at MSP.
One challenge: This relies on people reading signs. Many people seemed to be choosing lines based on length rather than speed based on conversations I overheard.
One thing that was cool to see: the people who selected the “Expert” line were of all ages, including a world traveling couple in their 80’s.