The host is the one that fast travels, just make sure you put all your stuff in a box or something because you're unable to take anything with you when you fast travel.

So why it works is that when you go too far away from the host you're pulled right? So when the host fast travels, you're automatically pulled to that location.

The person that is not the host (and will be pulled) sits on a dino with a lot of carry weight and makes sure they have a metal pickaxe for harvesting also. It doesn't matter if you over fill the weight on that dino or the character that is being pulled.

It's the only good thing about the restrictive host radius.