All flows and checklists are learned both single pilot and crew, which can be a bit awkward in a single pilot aircraft. It's your discretion as to what he does, but I always alternated legs and let them do take offs and landings, except for a few times with really bad weather. A couple were really good, most were average, only one was bad, and he improved with time. View it as a mentoring role. Remember these guys are at 250 hours when they start, and leave at 1000 TT.
Most were fantastic people, and I'm still friends with a couple. Some even came over to my house for BBQs and played Xbox with my kids. Good times!
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