25 days worth of testing required apparently...
Still doable to open mid-May (although maybe not the penciled in date of the 18th, looking like the week after (which is Half Term, wahey) atm), as they can still finish the paths/fences/etc (which have already been started) during testing like they did with Swarm (and every other coaster ever)...
Shame it's so late, because quite frankly, it's amazing to look at... But this might give Merlin a little poke in the face to say "Look, this is what happens when you rush massive coaster projects! Unexpected delays happen and cause it to finish/open late and in excess cause issue with guest numbers"...
I think the compact nature of the ride also didn't particularly help construction either as well (in addition to the groundwork trouble, snow, wind, alien beasties rising up from the ground, secret vaults being discovered, curses, etc)... This project is probably the most complex in the UK (the more they built, the more complicated it got to build the rest of it with lack of space, etc), and definitely sits up there with Oblivion and Nemesis for complexity...
Either way, looks like it might be opening when I'm away, which is good, means I can avoid the inevitable descension of goons on the park and the inevitable cries of it being 'crap', 'rough', 'not better than Nemesis', etc.