So I've been attempting to pick up some pinks for my alts off of Bad Mojo in Wyldwood. I've been zoning in from the Goblin Stronghold and have killed the Spirit of Fire nearly 40 times without seeing Bad Mojo spawn.

Generally I enter the zone, kill the first bunch of mobs, move up the path and aoe down the mobs and SoF. I have tried waiting around, dpsing slower on SoF, etc... nothing.

Am I just unlucky or am I doing something wrong?