Enter Valhalla
TS Member
It doesn't have the capability to run three trains. As for capacity at Oakwood in general, my first visit to the park in August 2007 was when I saw one train on Mega with a 50 min queue. Since then I've visited every year and the lack of trains/cars on the two big coasters has nearly always let me down. This suggests it's always been pretty relaxed and that not much has changed, although I'd say the Engineers have probably got worse for adding second trains/cars, but they've never been great as far as I can see.