I have made sapwood backed bows in the past and they are great performers. Usually the sap is a whitish cream color and while softer than the yeller stuff, still decently hard.
The stuff im working now is more yellow in color and very soft. Like, dig in with my finger nail soft. Anybody with some sage layin round, could yall check your sapwood so I can compare it to what I got now? Maybe I am just now noticing how soft the sapwood is?