if you stretch the 1/8 inch wide material while applying it, wouldnt that work??
i do not believe scud back comes in 1/16 in wide.
another option is "flexibody" but you will have to cut it into 1/16 inch wide strips. cut up 5-10 strips at a time should work.
http://www.flytyingspecialties.com/p...products_id=71