How do the vortices of a fixed wing and horizontal stabilizer interact? What interaction of vortices between the fixed wing and horizontal stabilizer?

How do the vortices affect the flow of the horizontal stabilizer upon leaving the wing? 

when will the downwash effort affect the flow, apart from not having clean-flow?

Does the downwash decrease dynamic pressure the reduce the lift? 

Does the Airflow be affected after leaving the wing?
The vortices coming off the ends of the wing are outside the width of the stabilator or stabilizer/elevator, thus there would be little interaction.

In my plane for example, the wings are 35 feet 6 inches wide, the stabilator only 11 feet 10 inches.
Thus the end of the wing is 17.25 feet from centerline, the end of the stabilator at 5.9 feet, thus 11+ feet of clearance.