So, I went against my better judgement by even responding to this thread. I was hoping I could give some perspective to the OP's question and I'm probably not the guy to do that because I am in the business. Apologies to Ted Thorn if I offended him, I know he's a good dude and I have some friends that I put a lot of value in that hunt with him every year and hold him in highest regard.

What it boils down to is that 10% is the number that seems to be a "standard" and I'm not the one that came up with that. Tipping is an individual decision in all areas from restaurants to valets to hunting guides and more. If you want to do it then get after it, if you don't then thats your choice as well. Hunts are expensive, I get that. Do what you want and as it is in most aspects of life it all seems to average out in the end

To the OP, best of luck on your hunt