I could be misremembering, but I seem to recall that the most common misconception is that there is NOT a provision for 10/12 in the 99-seat plan - and beyond that, the PM shd know that tech rehearsal is NOT rehearsal time for the actors "standing around being lit" but rehearsal for the crew and stage management, a time to solve the technical issues and practice them so the show runs smoothly, so it sounds as if a little gentle education is in order.