I normally use either Italian 00 flour or Hogdsen's Mill AP flour (either of which has about 9.8-10% protein per the mill specs) to make my Rosetta Rolls. I prepare a biga at 50% hydration with 90% of the flour and pre-ferment 12-16 hours. I add diastatic malt powder, water (52-55% final hydration), salt, and the rest of the flour for the final mix.
I had some left over biga from making pain puglese last week. last night I weighed the flour left in a bag, 21 ounces. The biga amounted to about a cup and a half. I scooped that with my hand and mixed it with 16 ounces of warm water and a teaspoon of yeast and 10 grams of salt. I calculated that this gave me about 75% hydration. I mixed the dough by hand and allowed several periods of resting between turning and folding the dough 3 or 4 strokes.