modeled a helix with tangent ends to centerline.
flowed curve to curve to generate helix curve path.
unwrapped new helix curve.
modeled solid to fit length.
flowed.
(Note: Will remove 3dm model soon. File size is big and need storage)
You guys are awesome! Thank you all for jumping in to help answer this question. BurrMan the video explained it perfectly - I appreciate you taking the time to record that!