cornfed:What exactly is the hovering drill they cover?
When I run a Buoyancy class, or any other specialty class for that matter, it is tailored to the class. So exactly what drill is covered isn't a fair question. It usually is one to several different ones depending on how may students there are and their proficency level. It could be going thru the obsticle course, balancing on a finger, pass the weight, how close to the bottom, etc... It depends on the discretion of the instructor and the students involved.