Factors which determine the requirements
Primary factors
- Weight
 - Case - efoil/foil-assist
 - Time and money available
 - Skills and experience
 
Secondary factors
- board model and size
 - foil specifications
 - Weather temp
 - water temp
 - chopes/swells/height/lake
 - wind avg
 - wind gust
 - prone/sup/wing
 - required speed
 - required duration