Did a summer job renting
pontoon and small CC Cape Horn boats. All were equipped with Piranha props and it worked out well for us. Some renters wouldn't even realise they were aground and would grind them down to the hub. Never had any other damage.
Prior years with standard props were much more costly with prop and foot repairs
. Not to mention lost
rentals do to those repairs
The blades could be swapped out during turnaround and never lost
a rental as a result.
At full power or heavy load there was some flex that effectively reduces power but only those that drove the boats before the conversion could detect it.
If you think there is a reasonable chance of grounding some day these props could be a smart decision.