Good luck to you all on your second bite at the apple.
only chap I knew rejoin was thirty odd years ago so not relevant, he did reissue of kit, jabs update and requalified on the musket, then a practical trade test, as he had spent 10 years doing skin repairs previously and the reason he left, he knocked to 2 week trade test job out in a day or so and was then posted back to a Sqn.