Congrats! Good question as to where to go from here though, I don't have the answers for that. My DS 4.5 just had testing completed as well and we are anxiously awaiting the results. He sounds very similar to yours (except for the building skills...that is pretty amazing!). Anyhow, we did the SBV and the WIAT for the achievement part. But like other posters said, their are subtests that 4 yr. olds aren't old enough to take technically. Our tester still gave him some of the subtests at least. Like she did reading comprehension and some more of the math stuff since those are big skill areas for him. He was tested out of level so I am not sure what DYS does when kids are tested out of level like that. I guess we will see if he meets the criteria or not. I really don't know what the tests will tell. Welcome to the board!