ok there i,ve 2 big dogs and 18 month lakie fell bitch who i got after her first 6 months good worker at times not scared to join in when big dogs catch prey,she,ll go down rabbit holes only with ferrit about,some times she,s on top scanning insted of under ground.also of right good stock,so am looking for comments to why she never comites on her own.she,s also hard work to get her pushing haevy cover could she have a bad sense of smell ????and above ground shes super brave with what ever lurchers catch.so with all that is she to young yet for dens or will that come with maturity.