I did have to use my DIN-to-yoke adapter a couple of times.
In Cozumel, my first tank had a Pro valve, but the insert was corroded in place and we couldn't get it out. I had to use the adapter for that and just caved and used it the whole time I was there.
On a Blackbeard cruise, I had requested a DIN tank and was led to believe that I would get one unless other people grabbed them all first. In reality, they had no DIN tanks. I think they specifically do not want to deal with DIN tanks on the Blackbeard's boat because every bench seat is setup with a fill whip to fill the tank in that spot.
After every dive, you put your still-assembled rig and tank into a spot, bungee it in place, and then just remove your 1st stage from the tank. The crew comes around and puts the fill whips on all the tank and start them filling, so it will be ready by the time you are done with your surface interval and ready to splash again.
All the fill whips were yoke and I think it would simply be slightly more work for the crew to make a DIN connection every time, in order to fill a tank. Yoke is a little less secure, but it's also a little quicker to put on and take off.
On those occasions, it was not a big deal. I had my adapter, and my tank valve rides somewhere around the base of my neck, so having the 1st stage 1/4 inch or so closer to my body does not make me hit my head on it.
In Cozumel, my first tank had a Pro valve, but the insert was corroded in place and we couldn't get it out. I had to use the adapter for that and just caved and used it the whole time I was there.
On a Blackbeard cruise, I had requested a DIN tank and was led to believe that I would get one unless other people grabbed them all first. In reality, they had no DIN tanks. I think they specifically do not want to deal with DIN tanks on the Blackbeard's boat because every bench seat is setup with a fill whip to fill the tank in that spot.
After every dive, you put your still-assembled rig and tank into a spot, bungee it in place, and then just remove your 1st stage from the tank. The crew comes around and puts the fill whips on all the tank and start them filling, so it will be ready by the time you are done with your surface interval and ready to splash again.
All the fill whips were yoke and I think it would simply be slightly more work for the crew to make a DIN connection every time, in order to fill a tank. Yoke is a little less secure, but it's also a little quicker to put on and take off.
On those occasions, it was not a big deal. I had my adapter, and my tank valve rides somewhere around the base of my neck, so having the 1st stage 1/4 inch or so closer to my body does not make me hit my head on it.