Schulze is volume/parts, not weight. All Christopher's 'commonly marketed' formulas were also based on volume/parts, not weight...in fact, I can't recall ANY off the top of my head that are based on weight (except some of his recipes for various teas...but even then, he sometimes measures by teaspoon/tablespoon).
We'll be having another 'tincture party' on the next new moon (5/24)
'Gotta go answer posts that have been waiting 'much longer' :)