Recycling can be done at any time. I have a bit of problem with. Recycling has proven difficult and resource consuptive, and should probably be minimized to save weight and materials. Also its often far easier and less resource consuptive to mine replacement material, then to recycle used. We should have a good idea of the desired orebearing asteroids before we go on the flight, though we'ld probably need a separte minning team.
Recycling is relatively constant and with little surprises.