I am about to venture into the sidemount realm and am curious as to a couple of things. First off, I currently own a couple of HP117 Fabers. Are they too big or heavy when full to be held by the clip solution discussed here? I like what I saw that Netdoc configured. Looking forward to pics. Secondly I am thinking about a machined split collar instead of a hose clamp for a more secure top attachment due to the weight of my available cylinders. Comments?