My apologies for the delay. Gonna give these a test whirl later and see how they perform. If alls good I'll have one or two available tomo so hit me up if you want one. $50 shipped. E2a First tests went well! Woooowey. Feeling confident that I've got it nailed now. The top heat exchanger in the picture isn't perfect so will be MY new Gn0ck0ff (2.0) The reason being for anyone who cares is that I started the indents a little close to the joint. Although this doesn't affect the function I feel the little gap is there for a reason, to keep the heat away from the joint, as joints do inherently have some stress in them. The bottom one in the pic I am happy with. I may try to do another vid at some point. Don't hold your breath haha.