This is interesting. So if you had a decent guide & a decent crew for a 2-tank guide...you would tip the guide $20 and the crew as a whole $20 (to divide up among them)?
The guide doesn't always share in the bounty. Some do. Some don't. Many of us are independent guides, so the crew doesn't even see us as 'crew'. That's OK.
BTW, the best tip I ever got was because I was sick. I've shared this before, but it is kind of funny. I dove in the morning with SB Invasion peeps...
@LowVizWiz and his gang. I was feeling poorly, but I didn't get really sick until I got deep. It was horrible and I tried to back out of the afternoon guiding gig... I couldn't do it.
@mselenaous brought me all sorts of meds for my tummy and even sea sick crud. We're not down five minutes and I felt the world go in a spin. I grabbed the nearest rock, spit out my reg and went yackity yack. I was immediately swarmed by anything with a yellow tail. This kept happening throughout the dive and I would keep ducking my head down low, trying to protect my clients from seeing the vomitous. They had a blast and I was planning my funeral. On shore, I trying my hardest to be helpful and do the stuff a guide should do, when the Dad came up to me and gave me the biggest tip I had ever seen. We called me the "Fish Whisperer" and thought I was praying or calling them to me whenever I ducked my head. He even told me that the tip was all for me and that he had taken care of the crew separately. Boy, that put my whole ordeal in a different perspective and I didn't feel as sorry for myself.
Here's the bad side of tipping. When the waves get rough and the weather is not cooperative, there are very, very few tips. This is when your crew and guide are working their hardest to serve you, but since you didn't have fun, they don't make as much. Sure, they're used to it, but that's when I give an extra special tip. I remember how that huge tip made me feel a lot better about life when things were as crappy as I had ever experienced. It's not their fault that the seas don't want you and you can bet they wouldn't be there if they weren't being paid. Just a thought, but if you put them through hell by insisting to dive when Poseidon is playing rough, then make it worth their while.