In the first place, for someone to produce a mod supposedly designed for 'competition' use, one would assume that the intention is for it to be able to withstand the hazards, and possible failure, of batteries being pushed to their absolute limits. I doubt that the customer target base for this mod are the Protank or iClear30 users. The target is the sub sub ohm RDA user. With that in mind, I would expect, if I were a 'competition vaper', which I'm not, for the venting ability to be without question. I'd want vent holes big enough to vent at zero pressure; not 5psi, 20psi, or 30psi. I don't know what the theoretical pressure of a battery in thermal run away would be. I'm not an engineer. But I appreciate the fact that a reviewer raised the question as to whether or not this mod's venting ability was adequate. To be met with the response: "I'm an engineer. Don't worry about it." Is irresponsible.