I assume your order is like that so you can "break in" the people that have never ridden coasters before. I don't think you need to ride ALL of those to break them in though. If getting coaster newbies used to coasters actually is your intention, I would ride Iron Dragon, Mine Ride, then Gemini (which should be enough to prepare them for "large" coasters), I think that would be sufficent. In my opinion, Wildcat is much more intense than Iron Dragon and should be after it (it looks like you tried to group the rides by order of intensity)