PA529 IP vs GSP Question: Trying to decide and looking for others experiences

Hi all - Trying to decide between the PA529 GSP and IP for two kids age 1 and 2.

Leaning towards GSP mainly because it makes me a little uncomfortable to risk education funds in the market (have other investments in marketbas well) .

But was curious what others chose and why? Also wondering if others had any experience with sage scholars program?