Full moon on the 13th day of the 7th month during the 11th hour and it will drop.....

Seriously.... it's just rotten luck. When we've gone after them in Rang. Pass it always seems to drop off the eye the most....most times it was ONLY off the eye. Not sure what the drop rates have tracked as, but for us at least, that seems to have the better rate in Rang. Pass. In Kuftal, it was the tigers that had the better rates.