I have been trying not to rise to the bait of your inane questions or statements; but without success....I specifically said that my safety stops when using EAN40 to avail myself to the oxygen window would be extended and never stated "3mins" as my safety stop time....but you knew that...if anything can me modified on the fly during a profile to lessen the chance of tissue damage extending the shallow safety stop time, especially if using higher % of oxygen, will help prevent that damage. Otherwise why are SSs used?
Direct answer....yes [read articles] breathing a higher concentration of oxygen enhances, improves, the removal of inert gases such as nitrogen in my case since I only dive 21% air from the tissues.....you use "significant" as a modifier to your supposition that use of oxygen with your '3min' construct on any dive will not result in 'significant' removal of nitrogen....each dive is unique as are the parameters/variables that can induce injury to the diver....significant is anything that can reduce the probability of injury....diving is a matter of inches not miles; small details matter. There are no absolutes in preventing injuries to divers but every little increment just might keep the diver safe. Like "Old" stated, as have I, you never eliminate risk you only can hopefully reduce the risk.
Of all the chatter, the use of the oxygen window to lessen the probability of DCS or asymptomatic injuries is accepted as true...same reason decompression chamber use 100% oxygen as part of their treatment protocols.
One thing for certain, today's paradigms will change over time. But currently, understanding and utilizing the oxygen window benefits during an extended SS while on higher % of oxygen is a gold standard.
But hey, do whatever you choose on your dives....all about individual choice and concurrent responsibility.
