i always use batting, i love how fluffy and soft they get, the x stitched across is just to keep things (secure) the quilting of the sandwich. my favorite is about 9" squares, flannel on both sides, warm & natural in the middle :thumbup:
the x does not have to be an x it can be any quilting you want....x's are just easy and quick.
i have made raggy quilts with other block arrangements and even strips they are fun but clipping can be a challenge. after 6+ years of making them i finally figured out it was easier to clip as i go...as in, when joining rows i will clip the joined blocks as i go so by the time the whole quilt is together i only have to stitch around the outside and clip that and i am done...if you sew it all together and then sit down to clip it all...recruit help! and take breaks to stretch you hands, arms and shoulders. :thumbup: