Hi Tom,
They were done with long, short, and no tapers at all. In my opinion, the important consideration is what will you shoot from the gun? If bird shot, a skinny rod with swell just at the end works very well and the thinner pipes keep the gun looking slim. However, if you will shoot a lot of patched round ball, a stouter rod would be better. Perhaps a slower tapering rod with larger average diameter and using larger diameter pipes at least for the first 2.
dave