I have flaps on a TF P51 mustang. They seem to work well when used. Half flaps for take off and full flaps for landing. I would land with half flaps to start with. When landing with flaps for the first time watch for getting the plane too slow on landing. Flaps I find also allows me to keep some power on which adds increased air flow over the flight surfaces. Takes away a little of the sluggishness of the controls when landing. I would also like to mention that if I'm landing in a stronger wind I will only use half flaps for landing, if the winds are very light then I go with full flaps. Makes for a little more even feel when landing in different wind conditions.