roadcykler
OP says using the ZU/Denon sparingly (for 13 years _____?)
Using Dynavector for a couple of years.
If OP is thinking about a new cartridge, I PRESUME he listens enough to ask for help. Thus I mentioned stylus life, OP knows the answer, not me.
I gave the link for the whole article, and a blip of info
Everything's relative, multiply them all by 4, the difference of +250 hrs becomes +1,000 hours.