I think your response is well written and you raise valid points. I think if one looks at the reasons why and how this market developed we will find the answers. Each bottle manufacturer manufactures bottles for their own market/country. They made sure that there was no compatability of regulators between each manufacturer. Then we the motorhomers created the need for standards, but calor and the like want to tie their customers in to their own proprietary systems even though the market was and still is crying out for one standard bottle across all of Europe. Then because of market demand, other oem's saw a niche and began to manufacture filling adaptors to address the problem. Shortly after gasit and other oem's followed suit and built the first refillable bottles with additional safety features built in. Whilst this is the history to why the industry is where it is, the original problem still remains and I would still encourage calor and all bottle manufacturers across Europe to get their heads together and produce one standard bottle and regulator across the industry. However, we all know they will never do it and this subject will always remain a contentious issue.