I would use the information this produces by starting to form where my students are at and what ways I can better reach their needs. It serves as a type of assessment to see into their learning process and how they think they learn best. It gives you a glimpse of their world and when and how they feel they have accomplished a skill. Also what I think is really important from this information is that you see the different learning styles each students has and how your to incorporate them in instruction to reach different learners. I don't think any of the questions I would remove from the inventory, but maybe asking questions about their home life and family to get a idea of what their environment and culture is outside of class.
What are some relationships you see between this variety of inventory types, and what we are beginning to learn about differentiating content, or process, or product for readiness, or learning profile, or interest?
The relationships I see between these inventories and what we are learning in differentiating is that we need a handful of tools and ways to see what students interests and personalities are before we can teach them in a way that they'll learn the content. With having the surveys on writing and reading and seeing how they respond to certain questions I think can be really powerful in what materials and strategies you provide to spark interests more.