I think it is also a cyclic thing. Sometimes DD is just into learning, doing her math, leaping in bounds and then there are periods when she needs a little more down time and do some mindless things like spirographs.
And we have found that having the accelerated math works within a very diversified platform, that is in her grade. She has Chinese and piano as straight extracurriculars, does a science class at the musuem that is phenomenal, although her in class science is really well done. And they have Spanish and chess in her class also. For grade 1, it works. But not having the CTY math that challenges her, it wouldn't work. The math in grade 1 was so far unchallenging. Hence, my opinion is that accelerated math as a pull out works for younger grades. But I am not familiar with what is available for other children.
Ren