Just some food for thought! I remember a class we had on Haughton Equipment that had Verniar Selectors (excuse spelling). This car was old and ran poorly. You could tell the selctor was in need of attention and the car landed bad. We had a guy from out of town who adjusted these mechanical monsters back in the day! Within 20 minutes he had the car running pretty damn good....It wasn't that the equipment really needed replacement, it need a skilled elevatorman to work on it! I guess I just remember when we were not a "plug and play" industry!