I posted on the 1/19 that I planned a visit to Dallas in March. On the 21st, Edo put my cylinder in the mail back to me and on the 23rd he posted an attack on my character in THR blaming me for his poor handling and lack of communication. Every single comment I made about the whole situation was because he refused to even acknowledge that he received the cylinder and effectively dropped off the face of the earth. I could only conclude that they went defunct and I was out my money. In closing of this issue, I have two things to say, first, one grain of water weighs the same as one grain of powder. However one grain of powder is a larger volume than one grain of water, thusly his claimed 4.75 grain increase in capacity equals about one grain of powder , if the OEM cylinder weighs as he claims. I don't load water in my ROAs, do any of you? Second, this whole issue came up because of lack of service and communication. In the box was a nice note that I sent with the cylinder to him that included my cell phone number and to this very minute he has never once tried to call me to settle this. He had my E-Mail and the gentleman's that sold me the cylinder, but wouldn't talk to him after that man wouldn't buy more stuff from Edo. It's settled now and I have the cylinder back. Good luck to anyone else that deals with him.