As TheWeirdo69 mentioned quite correctly, at 86 Att, 85 Str, 90 Def, 64 Pray, i could hardly make it 1 kill consistently.. Quite a few times, i had to bail out at half kill. Success rate of 1 kill for me is around 50 - 50.. And as Gorgoroth pointed out, at 1 kill per trip, its just not worth it..