bummer, it is surprising they won't do much with 99th in math!! sheesh, no wonder we're falling behind in math as a nation. Does he literally have to be 98th percentile in both to qualify?
I gather that the composite of the three indices (nonverbal, verbal, and quantitative) on the Cogat need to total up to a rarity of 98th percentile, not that both need to be there and also that he didn't make it to the CogAT testing b/c he wasn't high enough on the achievement testing. (That is, of course, assuming that I am reading this right!)
I know that I am biased as the parent of a 2e kid, but I also really think that the validity of GT identification (as in, are we testing what we proclaim to be testing: whether the kid is gifted) is really questionable when we rely to heavily on achievement and group tests that just don't seem to have great convergent validity with the WISC in particular.
I know that these group tests have been validity tested and supposedly line up well with IQ tests, but I've seen over and over not only underestimation of gifted kids, but overestimation of more average kids (not what I'm implying with the OP's kiddo at all and it doesn't even sound like he got to the CogAT piece). The publisher of the CogAT has addressed this issue a few times in what hasn't been a fully satisfactory manner at least for me. See, for example:
http://www.riversidepublishing.com/products/group/cogat6/pdfs/newsletters/CS_vol1_summer04.pdf