seaducer
Contributor
...In this area I don't think that there is a whole lot of difference, at least between scientific and recreational, both suffer from the layoff problem both need to refresh, we teach specifically how to do it well, the recreational world would have you make a "refresher" diver with an instructor who really is not there for anything more than babysitting you through a dive. It need not be that way.
I am going to say that is an industry problem, not an agency problem. My local dive shop (RIP) used to allow all its former student free pool time to refresh skills after a winter off. PADI advised me to seek out a refresher course. IRRC my shop used to allow people to sit in on OW classes if they were in session and there was room as well. The agency adresses the layoff problem by advocating IMO skill drills supervised by a dive professional. If the DM or instructor chooses to clean their fingernails during this dive as opposed to coaching the diver, I can't really fault the agency. Unless they have been reported before a few times any way. It is not practicle to have a PADI rep at every PADI shop to ensure people are doing what they are supposed to do.
Having not taken a scientific diver course I can only imagine the exercises you mention for sharpening rusty skills are similar to those taught to new divers as well. Bouyancy and buddy skills are taught to divers in all agency courses, but if the diver chooses to just jump in after a year off without heeding the advice they were given in class, well I can't fault the instructor or agency for that.