have to admit I am not a fan of ''flows''. I prefer a "do list" with checks.
My opinion is that DO LIST (Read and Do) is not applicable for After Take off and Before Landing check list whereas PF call for gear and flap and then both verify using check list as follow up !
Accomplishing DO LIST in other phases may require to hold until item (e.g test) is completed and this wait increase the probabiliy of mistakes (or errors)!
In my Company DO LIST is only for Abnormal / Emergency.