I would say At least 20% of my XL pings are for 1 to 2 paxs. I know what you're thinking.... they want more room! That maybe true, but I had a pax during HOF week that wasn't that big and I ask him why he does XL? More room? No! He told me the drivers are better.... of course I couldn't disagree with him! So I asked a couple of my XL paxs that question last night and they agreed! So have you XL drivers upgraded to XL after driving awhile? So are better at driving paxs?