This is true. Then you factor in that out of those rides only Blade and Curse of Alton Manor are open all day as Hex, Granny, Sub terra open at 11 and Battle Galleons closes at Dusk.
It really stuck me on Monday how one decision can literally make your entire day. We headed to the Smiler (due to open at 10:30) and at 10:45 it was clear that it wasn't going to open. I've been stung by the Smiler before and we decided to bail. Good move too as it broke down around 1pm and we wouldn't have got our ride, we would have wasted the first three hours completely. We actually headed to Hex, as we got up there, Thirteen went down. Nothing open at all at the back of the park. It was absurd to be honest.