I haven't had any 'poo problems. I use LI, seal with sweet almond oil, then FSG and a little dab of BRHG. I love sealing all year round. I rarely poo, mostly co-wash and the oils seem to come right out. I lo poo maybe once a month and do acv about once a month too, no buildup.
HTH

Sent from my iPhone, please excuse typos.
2c/3a, medium/coarse, normal porosity, normal elasticity
CG and covering the grey!