We had DD8 tested with the WISC IV at age 6. She too loves taking tests, so that was not an issue, but we did have a couple of issues that ended up being rather significant.
The tester was not used to testing gifted kids and DD hit the ceiling on a bunch of the subtests. The results were that she did not qualify for DYS. However, we got her retested this past spring, with a tester with lots of experience with gts and she ended up with a score that was 7 pts higher than the score at age 6, and qualified her for DYS.
The validity of the tests at age 6 is a bit questionable too. I just wanted to give you a caution about the possible outcomes.
Good luck
