I mean I dive 5-6 days a week as a working instructor in it, and am extremely fit doing calisthenics, stretching, and yoga several times a week so I doubt others are able to change body position to vent more efficiently than I am, maybe for bigger people venting is easier in this suit. I also worked at a shop where 5 other dive pros have the d7x nylotech and every single one of them has the same problem with venting gas. I think what you will get in this thread is a lot of people who don't want to admit their $4000 drysuit is improperly designed.