The most basic of basic questions. I'm finally thinking of making the change to CCR. There are obviously lots of different types (too many to realistically try dive then all) and different divers evangelise about different units.
Whatever unit I eventually settle on, is it sensible to do the training to make sure I get on okay with it, on a hired unit from an instructor, or should I buy one and set it up throughout the training? As training is unit specific, is it the case that you're pretty much committed to the type of unit you train on (for a few years at least) from day 1?