Thanks Pat. Seems like stage 2 in particular is much more lengthy and complicated than when i did mine in Feb this year. Also the 'structured' interview in stage 3 sounds ominous. I don't think i'd describe the interview i had in stage 3 as structured. Seems a bit daunting. That said, i never thought i'd make it past stage 1 last time and it was probably only once i heard i passed stage 2 that i really started taking it seriously.
I'm surprised that so much seems to have changed in such a short time, but i guess NATS wants to improve it's success rate in the college.