Also the dial should be smooth to turn. Earth base should be square . This is to facilitate taking directions by matching it parallel to the wall or door of a building. It must be straight and not bent. Only buy a luo pan which contains information on the formulas you sue and practice otherwise it is a waste of your money.
Accurate markings Are vital.
These are usually shown on the outer most ring. Examine these markings carefully. Finally of course, I do insist that a luo pan should look attractive and beautiful and be as smooth to the touch as possible. Remember that to many old masters their luo pan takes on a life of its own, and these luo pans do get better with age. If you have made a decision to become a professional feng shui consultant, you should seek out a Master, find yourself a luo pan that feels just right to you, and you should learn to use it.