Shelly,
Your DS sounds so much like mine it's funny. Although my DS is officially listed as a K, he only spends recess, lunch and the last 15 minutes of the day in his K room. The rest of the day he rotates through various grades and subjects. He had a little trouble in the beginning because he got tired towards the end of the day, but now he is loving it. I spoke to the principal about skipping to 2nd or possibly 3rd next year as all of his subjects are at or above that level. I think that even limited amounts of K were good for him as it gave him a chance to learn "how to do school".
I'm waiting for my Iowa Acceleration Scales Manual before I push the issue of skipping but at first glance it seems like it would work for him. You might suggest something similar for your DS and see how the school feels about having daily pullouts.
