I was on the last Beast train of 2000, in fact I sort of make it a tradition of sorts. Either sanctioned or unsanctioned.
By sanctioned I mean:
In 1999 there was a small ACE event at PKI, not much fanfare about it, but it consisted of a meal in the International Restaurant and a hard hat tour of the SOB construction site. At dinner they announced that they would reserve the last train of the evening for event attendees. They did they closed the ride while they held us in a waiting area, and after the ride cleared, let us have at it, actually walking us up the OLD exit ramp, the one that comes out alongside the current entrance ramp.
In 2000, I don't know how sanctioned it was, but they allowed a group of ACErs to mingle in front of the Beast until all the regular riders had ridden, then they loaded up one last train with us. The ride was most memorable for those in the front car as we sang "It's a Small World" up the lift hill in the most loud and obnoxious voice.
Note that PKI added a weekend in November last season after Fright Fest, but you had to go to LaRosas to find out about it. It was the LaRosas Close the Park weekend, ro some such. Actually a great deal as Larosas had coupons that allowed folks to buy tickets for only $16.95 each.