I applied last September, had my AST end of October (it took them about 4 weeks to reply to my application), initial interview was first week of November and they were talking about having me in before christmas, but alas my medical was the end of January (Capita failed me over apparently high blood pressure, had to get 24hr bp monitor) finally got the all clear beginning of May, then had my fitness....got my PRTC September! Start December! So for me it's been a fun 12 months. ;-)
Good luck! lol!