Tvheadend

Hi

I have this setup now:

tvheadend with 4 tuners and 4 kodi boxes with tvh pvr client

are there any advantages with use of sat>ip? if yes how should such a setup look like?

tvheadend with exported tuners -> tvheadend on kodi -> tvh client on kodi?

someone of my family uses my tvheadend over internet with kodi pvr client, are at such setup any adavantages with use of sat>ip? could I use tvheadend as sat>ip source with an other tvheadend? if yes how?

Greetz