I don't know about preferential, but my DS6 got a 145+ on PRI only (he also showed as GT on VCI, but not 145+, and his FSIQ wasn't above 145) with 145+ on the WJ-3. He was accepted into DYS.

Since they have a rolling admission process that never ends, it's pretty clear that they accept all who qualify according to their standards. As my son shows, those standards do clearly include kids who score 145+ only only one of the three acceptable scores.

Kriston