Perfect Buoyancy

Perfect buoyancy is not a gift it is a skill that is honed. You need to understand your rig and make sure that it is balanced, you need to understand propulsion and make sure it is efficient, and finally, you need to maintain trim in perfect position in the water column. 
 
Perfect buoyancy enables effortless diving, minimal air consumption and allows you to go into places and do things others simple can not do.