I've had very little success on the two PVC beds I put out. The Bamboo worked first year and not much after. Nothing works better than wood for me. I love Persimmon trees as the have few limbs and easy to sink. My favorite is stakebeds either drove in the bottom or built of frames. With everything verticle and widely spaced. The stakebeds we put out are short and hard to spot on the deprth finders. The slab Crappie hold better in the wide spaced ones. The dinks love the tighter structures where bigger fish have trouble moving through.