Ways I use these...
Now, I print a set off for each kiddo. (Older two, do both, younger one does FIB.) Day 1, they do straight copy work into a spiral. Day 2, FIB. Day 3, History Sentence. Day 4, Blank. When finished, they go into our CC binder.
I used to put them in page protectors and let the older kids go at them with a dry erase marker. The page protectors helped me on my paper usage, since they fill them out more than once and I had multiple kids using them. My 5th and 3rd grader would use the Fill-in-the-Blank Sheets the first couple days after CC. We listen to the CDs at least once a day, so they were usually able to fill these in with minimal help. My 1st grader would use the Fill-in-the-Blank version on paper, with a pencil toward the end of the week. Then the two days before CC, I had the older two fill out the Blank Sheet with what they knew. This let me know if there was anything we needed to work on before proofing.
Why I changed....I decided that paper usage was worth my sanity. :) They can work at their own pace and are not waiting for a sibling to finish. Dry erase markers don't come in super-fine tipped (there's your million $ idea!!!) and it was hard for me to read and correct. I also wanted them to see their work when review for Memory Master.
Hope this helps you too!
Oh...the answers are in your foundations guide! ;)
(Don't want to mess with copy write issues!)