Conyers, GA
Quoted from snaroff:Final Frontier doesn't kick into multi-ball if you drain before the artifacts have been fully awarded.
Uh, that's a software or hardware error. Might want to double check your subway optos are all working correctly. It shouldn't be kicking out ANY balls at all other than preloading the subway slots while artifacts are being tallied. When FF starts, it should pop out both cannons and the left wireform at the same time, another one out of the left wireform if I'm not mistaken (my wife couldn't get it on the video we just recorded so not 100% sure) then use the catapult to put two additional balls into play....either way, there's no way you should have a ball in play while it's doing the intro. 
