i tend to have mine all after lunch time infact at times when ive been in hospital with my wee girl ive waited till shes asleep and sat and had 3 shakes in a row at her bedside at midnight, earned me a few funny looks from other parents, lol
i make my shakes with 400ml, taste yummy to me that way ( i only have choc mint )
oh and alex, i had to add milk to my shakes this week, never again, really didnt like it. just shows how different all are tastes are