So, I'm sure this will not be popular but ...

I tend to tip at the higher end. I hunt with two PHs primarily. Different countries and different game but the same PHs. I find I get preferential treatment to some degree. Usually I get assigned the better hunting blocks, put on better trophies and end up with th e hottest tracks to go after.

It's not fair or just but economics. Repeat client and great tipper leads to being treated very very well. For an extra couple grand my precious time offf is maximized and that is well worth it to me.