Tartine Bread, Day 11: Need to formalize starter proportions for Cavanagh

I’m now feeding Cavanagh with a 100% hydration feed (equal parts flour-water) but I’ve been using a varying proportion of inoculating starter each morning. This morning I think I used too much of all components, because Cavanagh overflowed its modest jar. Lucky I placed it on a towel in anticipation of this. (The fact that I placed the towel there, I think, shows that I truly am getting to know Cavanagh’s life cycle.)