Guess YJ must have decided to follow LT in design again. Bad idea. Mine is only 7 months old but obviously slightly different. Never have connection or air flow issues, but the threads are going fast. About time to permanently install an adapter.
Yeah... 7 month in the e-Cigarette Realm is like Dog Years. A lot changes.
All I know is that Very Little product testing goes into Many New Designs. OEM's seem to just Crank Out a "New and Improved" design and then Dump it on the e-Cigarette world for Beta Testing.
The Floating Pin is a Great Concept. And shows how much the OEM's follow Forum like this Looking for Problems with Existing Designs.
But the Break Down seems to occur with the Single Dimensional thinking that Many Overseas companies employ. They try their New Design with One Type of Carto/Clearo/Atty and if it works somewhat, it's off to Production.
I remember speaking to a R&D dweeb one time about the problems with a particular Clearo. I ask him how much Testing had done on it before they went to market?
He told me that Many people had tested it with 100% PG and it worked Fine.
When I asked him if they had Tested it using any PG to VG Ratios he replied in Broken English...
"What Ratios you mean? No VG in e-Liquids. Only 100% PG. That what people use."