BTW, I don't have a WPPSI manual, so I can't say for sure, but two 17s should generate a VCI in the 140s, which may be close enough for DYS consideration, if you can get another index score in that range (you need two Index scores on the WPPSI-IV of 145+). If she is given Picture Concepts, and it scores at least as high, that would generate an FRI which may also be in the 140s.
Basically, her level of verbal giftedness is likely higher than suggested by the GAI of 134 (was that it?). And her abstract thinking may be as well (that's fluid reasoning). While you're asking for additional placement testing, you might request that they give her that one additional subtest, so you can have two Index scores, just in case they both fall in the 140s.
