I'm not sure on the Ruf levels. Dd12 in terms of milestones fits right in at level 4 but her achievement and IQ scores don't put her at DYS levels. She's more like a 99th or a little above kid with a few achievement areas that fall well above the 99th and one that falls more in the mid 90s.

Dd10 would likely be more all over the place on Ruf's levels. She was putting words together at 5.5 months, but in other areas would be in the level 1 or 2 area. She's my 2e one, though.