I've just had the pleasure of 6 months with CFS.
They certainly wouldn't advocate flying out of trim. However, your man may well be on to something.
Given how hard it is to persuade pilots to fly in trim, a bit of double bluffing on the instructors part may well work.
Tell the guy from day one that all he needs to do is have painful out of trim forces. Inevitably by trip 2 he will have sorted himself out.
Perfect!