Thanks everyone for the replies. Makes me feel a lot less worried. I am new to Z-Wave (and home automation, for that matter) so I didn’t know about the 1 million write endurance requirement.
I am doing something like @BuilderTroy where I am writing the default power on level based on time of day. Writing parameters 9 and 10 twice a day is 4 writes per day minimum, assuming nothing else. But I also currently have the “remember last state” set, so each time the switch turns on or off is another write.
Regardless, with 1 million writes being the required endurance, it seems that I have nothing to worry about. That’s 11.4 parameters written per hour for 10 years straight… and I am currently ~10 per day. Well, as long as they meet the requirements 