The Nymph instructions say that you can taper the outwales for weight reduction. What is a likely thickness to taper to? How far from the step would you start the taper?
The Skerry manual says (p.75):
Maesure about 28"from the bow end and make a mark. From this mark, taper the rails until they are about 3/4"tall at the end.
The with the Skerry kit supplied rails are 1"
Remember: the taper is at the underside of the rails.
Ruud