[Cooper]

And yes I changed designs on cylinders. I did make them out of steel but then switched to brass. Several factors at play for that choice. I was using 12l14 steel (high lead content) easy to machine but I didn’t realize it doesn’t like welding or brazing temps much. And also after realizing I’m planing on having several more small pieces added to cylinders for hard lines I would run into heating up parts I don’t want to heat up. With brass I can control the temp better and block the heat transfer easier. And the hard lines will be easier to fabricate withbrass tube. But one benefit, I now have spare parts from steel for future projects !! Lol!!