wow, one of the most complete answer i ever see. Good job frob.
i will add this, for the parafoil you have you need minimum 4-5 mph wind to fly and you will do that till around 30. with a 2.5-3 kite you will launch in 2-3 mph but because of pull be careful when the wind reach around 10-12. not all the time bigger is better and that depending of you weight and wind speed. at 200 Lbs i have for static fly i never go bigger than 5 on low winds dual or quad