FWIW
I used the stock generic Dave Brown/VirbaDamp/VonLinsowe mount.
Started with a YS91 then after about 30 flights upgraded to the YS110.
Now after more than a years time and about 6 gallons of fuel through both motors combined -same original mount & isolators, I can't identify any wear on the isolators yet. Expecting them to wear out quickly I did purchase some Dave Brown isolators and they look like they'll fit the original mount, but I haven't had to try them yet.
The only problem I've had is screws loosening. But I've read posts of many people with many different types of mounts have screws work loose over time

Eddie