Often, but I am obsessed with keeping everything tight to my body while being fully streamlined. When I outfit myself I think of reducing the risk of getting tangled in something, and access to my octo / drop weights in the event of an emergency. My big tip: forget strapping your knife to your leg. I use zip ties to mount mine to my BCD hose right on my chest for easy access. I love to offer suggestions to other divers on how to better streamline their equipment, but only if they want the info OR if what they are doing is just not safe.