Both schools I've worked for have actively tried to break the relationship I've had with my students in order to make them fly with the Restricted instructors.
Any benefit I bring from having 500 odd instructing hours, half a dozen sucessful skills tests and no desire to go to an airline, is negated by my higher costs to the schools and my willingness to call out short cuts and operational irregularities.
Despite every PPL I meet bemoaning the number of different instructors they have, the schools are indifferent. I would rather be in a position to supervise and help the Restricted Hour Builders, but to the school I am an expensive irrelevance........