The calculation resultsalso showed that besides the relativegroundclearance, the ratios ofthicknessandcamber of wingprofilehavesignificantinfluence on the aerodynamicsof WIGs.
After Leigh Halfpenny made the first glaring error of his fledgling wing career, dropping a clearance while under no pressure, makeshift fly-half Benoit Baby singled him out for special attention.
At the other end Gael Givet then made a vital clearance from Brett Ormerod's dangerous left-wing cross with Gary Taylor-Fletcher poised to strike at the far post.
Phil Jagielka's deep right-wing cross had Macho backtracking, forcing Stanislav Varga into a panicky, overhead clearance under pressure from Wayne Allison.