is there a mini limit when connected to 4-tuner Premiere as host?

I currently have a mini that is connected to a 4-tuner Premiere as its host. All works good. I like the speeds and interface of the mini so might consider some more to replace several Series 3s and 2-tuner premieres.



I know the minis now have dynamic tuning, but is there still maybe a limit on how many minis can be associated with a 4-tuner Premiere? Wasn't sure if this older technology has some limitations compared to the newer Roamios.