this quilt has so much work in it that i wouldn't choose to experiment on it. i would hand quilt and keep practicing on ones that i wouldn't cry over if i didn't like the results.
the hardest thing to do on a frame is stitching 1/4 inch away from the
seams, and, imho, that's what what shows off the work best. (and sid)
i think if you fill it up with stippling you lose the rhythm of the curves.