Exactly half way.... never higher once warmed up.
Towing, doing 90mph on private roads, driving to work etc etc - always the same.
Where-as my parents Disco... stays at a quarter all the time except when towing heavy loads and then occasionally gets to half way.
Could always put a laser temp reader onto the top hose to get a temp measurement, or put a thermocouple in?? And do the same on yours to compare the two.
Ian