Does anyone have experience with the Hardin marine ultra hp drive coupler vs the MerCruiser Drive coupler

Hardin shows the stock 98795 MerCruiser coupler with Aluminum hub as the HP coupler which was on my motors when I pulled them. I thought the steel Hub was the HP version but then I have also read that the steel hubs tend to spin in the rubber vs Aluminum just wear a little quicker. Mine are showing a slight amount of wear after about 200 Hours.
Thanks


Hardin Marine - Drive Couplers