If she was tested at four and is in K right now, the last testing was, what, about a year ago? I wouldn't retest at this point with the last test being so recent and even though you think that the # was off unless there was some really good reason.
A few thoughts come to mind:
1) How gifted is your older child and how does your kindergartener compare in terms of functioning? Do you have some reason to believe that your dd is more gifted than the older one?
2) If you have such a huge # of kids in GT in your school, do you think that it is a problem with overidentification or do you think that there are truly a lot of gifted kids there?
If it is the latter, might she be okay without significant acceleration (i.e. - might there be enough peers for her in her school)? Even though I have a grade accelerated kid, I would not assume that all gifted kids need acceleration and we would not have jumped to that choice had there been other options that might have met her needs.
So it would be almost 2 yrs. between testing, as I was waiting until she turned 6 in March. But, I do think we will wait.
1) So the girls aren't biological siblings, fwiw. Oldest dd12 has DYS scores, and a recent grade skip that I think at 1/2 way through the yr. I can call successful. They are very different, and I have had the feeling that dd6 is more gifted, but again I don't really have anything concrete to base that on except my gut. I did not expect dd12 to have DYS level scores, though, so perhaps my gut is off! I have spent a lot of time in classrooms around pre-schoolers and elementary school age kids, so I do know what typical development looks like and I do think dd5 is >MG.
2)I think there are prob. a lot of gifted kids, but prob. a lot of bright high achievers with tiger parents who I can see prepping their kids for tests. This particular school cluster seems to be known for insanely competitive crazy parents who all think their kids are gifted--I have not actually met any of these people yet, but I suppose they must be out there. I don't think once/week pull-outs are that great, and I think even a skip prob. wouldn't totally be a solution, but I guess it would put her closer to middle school and more options. I think the school basically thinks there is such a large number of gifted kids that the regular classroom should meet their needs without much effort at differentiation. I have no idea if they would be receptive to subject acceleration or greater differentiation. The assistant principal does have a gifted certification and is very nice and handled the IAS process for dd12, so I think he would be a good ally.
Anyway, we will hold tight. Curious to see how she does in the fall. I like the idea of somehow prepping her for the process of the screening (not the content). That might be useful. She is such a quirky kid though it is so hard to know what she is thinking.
Thanks for the feedback again!