I sometimes fly where Oded does (some of them were from Ga'ash, right?), and the more wind, the better!
as long as it comes straight in (like at the beach), you have no problem. only be careful on landing, as you approach from behind the hill into (!) the wind, the air behind the hill will be turbulent
start with medium winds 10-15 mph, and from there, as much wind as you find. 50 mph before a storm as amazing !!!
one thing: trim your glider before throwing it over the cliff, to avoid surprises...