To be honest, I think that to encompass every scenario a tube mod would have to look like a cheese grater!
Even the mods that now utilize side tube vents do not account for the case of the battery swelling above or below the point of their vents.
To cover every potential event, the vents would have to run the length of the tube and to be blunt, I simply don't see that as being adopted by the user base of PV's in general until or unless it is mandated by regulatory law with enforcement.
As a cop, I would analogize this to wearing helmet for motorcycle riders. Most states (including my own) have had laws that require riders to wear a helmet under penalty provided by law. Motorcylce accidents are infinitely more frequent and deadly than PV accidents but in the USA, most lawmakers have come to the point that there are more pressing needs for enforcement duties than the use or not of a helmet.
The result? Bike rider deaths from head injuries are at an all time high. Sounds like an odd time to do away with the lawful requirement of a helmet, yes? The bottom line though is that the person most affected by not wearing a helmet is the user. The same goes for PV's.
Until there is documentary evidence to show that more than the user is likely to be injured in a catastrophic thermal runaway event of a PV, even with regulatons in place, don't expect to see the majority of users adopting the "safer" cheese grater tubes. I would have to say I am one of the biggest GG fan boys on ECF but even I can look to other makers as examples.
The Provari is one of the biggest selling PV's yet outside it's electronic circuitry, it only has one pin hole vent in its cap. I have a used one and to be frank, wouldn't waste my time with it if it were all slotted up, even if it made it much more safe. And I have had a Chinese PV (eGo clone) go into thermal runaway. I have seen first hand what CAN happen.
It just isn't frequent enough to justify (for me) taking what are now common safety precautions. Like the motorcycle helmet issue - I have seen more bodies in morgues over the decades that wouldn't likely be there but for the use of a helmet. At the end of the day though, we all have to make our own decisions as to what level of safety we are comfortable with.
The only way to be 100% safe with a motorcycle is to not ride one. The same can be said for a PV but the risk I take using a PV is at least for my thoughts, far less deadly than using real cigarettes. The safety precautions Imeo includes are more than adequate for my tastes and feel to be blunt, that more would only serve to dilute the GG. No disrespect to
any other opinion - just again, my 2 cents.
