Having somebody constantly hint at being tipped would certainly detract from the experience for me, and would make me quite a bit less likely to actually tip them... In my opinion it would make sense for the outfitter to mention something to the client about tipping if they care to do so.
I also understand not all hunts and/or guides are the same... Somebody that sits with somebody in a deer stand as a "guide" and your guide from last August warrant a bit different reward I think, as far as pure effort and sweat equity go....
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