Quote ="74'"Catergory 1 is reserved, these seats are on the very top tier of the stadium, whilst catergory 2 is unreserved, these seats are anywhere on the middle or bottom tier, category two is better value for money IMO. Also, the middle tier is probably the best view in the stadium.'"
It aint upper tier is closed. The resvered tickets are middle tier running along the line. Unresvered behind one set of sticks. With 3 ends of the lower tier being unresvered.
RFL tickets site has all unresvered seating areas sold out as well and as a number of resvered sections.
Shame that the fans wont stay for all matches. So it looks like a good turn out.