Sourdough Ciabatta with Emmer

Here is my interpretation of ciabatta made with sourdough.
As a general rule wetter doughs require less madre. I used 20% instead of normal 25% as per doughs made at 70% hydration.
lievito preparation:
- lievito madre in aqua: 12hrs @ 15C
- bath: 15 minutes in sweetened water @ 38C
formula:
20% - lievito madre
90% - '00' flour
10% - whole emmer flour
85% - water (of flour added)
02% - salt (of total flour)