The 100 or so Non Rated Flybe/Blue Islands P2s that came in over the last year took about 8 months to a year to get rated and checked. They were all on full SFO salary and rating paid for (bonded 12k reducing over three years) from day 1.
Cadets however are a very different story with renumeration until they are line checked. They then enter the CLA like everyone else.