Are you concerned that the scores will be low due to any LDs? One thing I learned from the old reports and papers that my parents sent me recently from my school years was that my scores increased over time on the WISC-R (predecessor to the current one used today) - and the one full report I found, the tester had clearly stated that the scores she felt was not a true indicator of my full potential due to my disability not discovered until pre-K (that affected my language acquisition) and that the gaps were exposed by the subtests but she implied that she felt those low scores would increase in the future. Sure enough, my later testing shows how on target she was, with a big jump in the subtests that I was super weak earlier.
A good tester should be able to pick up if the scores will be a good indication of where he is or if they are just minimal due to other issues. It should not change who your DC is, but hopefully give you indications of any LDs or ammunition to use for advocating for your DS.
