For a strong wind day, the French (working in the Alps up to 12000ft) would generally fly a climbing approach obliquely up the upwind side of the hill (having done a recce first from a safe ht above the LS) and then almost spot turn into wind as they came over the LS. This was in an underpowered Alouette II, and it worked a treat! Meant an option to fly back into the valley, on the updraughting side, was almost always available if turbulence or power became a problem.