Wow Ruby, that is pretty jaw-dropping for me as well. What an incredible way to figure that out. Oddly enough while I do think of my DS4 as a level 4...I think if he got that problem he would say "I don't know." Or maybe he would say 3/8. Of course in 2 years who knows what he will be able to do. But that is true, that doesn't sound like a level 3 way to figure it out. interesting, thanks for sharing.