As a European, diving 300 bar tanks, it would be great if MacDive took into account gas compressibility for RMV. Subsurface does this, and my numbers look a lot better in that model.
(https://thetheoreticaldiver.org/wordpre ... ns-matter/)Of course it's not just that it "looks better". It's also the case that I sometimes dive tanks with a lower start pressure (12x232 or just a crappy fill in a 10x300) and then the same breathing rate magically looks better, making it difficult to compare my dives to each other and get a good baseline.