sasscuba
Contributor
Wish I could find a picture. Back in the early 80's they had this device you could clip on your hose and it contained like 4 or 5 yellow plastic balls that you would release to control your assent rate. I remember wanting them when I was like 14. You just made sure to stay below the yellow ball as it headed up toward the surface. Seems silly now but just remembered it and wanted to see if anyone else seen them or heard of them. I searched the internet for a pic but came up with nothing.