It’s not uncommon for a dowser to own several pendulums depending on the dowsing task. For example, I use the Conical Beech wood pendulum when recording Chakra readings for analysis and use the Mer-Isis brass pendulum for the healing work.
Experience will decide which pendulum or combination of pendulums gives the best results. If one pendulum doesn’t feel right or isn’t moving the way you like then try another. I usually carry two or three pendulums in my pendulum pouch so I’m prepared for any dowsing task that may arise.
If you are new to dowsing, below are two good introductory books you can obtain on my website.