Thanks to everyone for their advice! I've been rather fortunate as a JNCO in that as part of my preparations for going aircrew I've managed to do a bit flying and spend some time with the NCA on a few squadrons.
Sitting around with the crews and chewing the fat was great and I got lots of helpful tips. Just looking at the way they went around their daily grind was fantastic and I think if more junior ranks got the chance to see the other side of the fence more would apply for NCA.
I collected my gen app from P1 today so fingers crossed and cheers