This is good to know stuff, cause about 3 months ago (when I was still working my dad, brother-in-law, cousin and I went on a guided striper trip and stuggled with this same issue. The guide had given us a "military discount" off the normal $300/day trip and made in $250. We debated it, dad IS CHEAP, and decided that we should tip the guy 20%, and thus it basically cost us the same as a normal trip would have anyway. Glad to know he was not insulted by that amount, after reading the "guides point of view". Thanks for the info.