Just a quick note of warning regarding kangaroo skin from Shaff
Piano Supply.  Today I received one skin each of pouch and valve
leather.  The samples were wonderful.  The skins are terrible.  The
pouch leather is full of holes. It is only .006 but it is useless
except for packing. The valve leather is badly sanded and would yield
about 30% from the good areas.  I guess this is new stock and the
sample was the old good stuff.  Too bad they bothered to send it.  I'm
certainly not keeping it.