Does anyone/any agency still do it the old fashion way? ...I guess what I am looking for is a sort of REAL "advanced" dive training.
I've been teaching since 1971. Organizations like LAC and CMAS have actually increased their standards over the years. While the majority of others have reduced the standards for certification.
PADI has "Standards" and other agencies have "Minimum Standards" and encourage their instructors to surpass them during the certification process. The Agency does matter from the perspective of how much the instructor can demand for certification. Therefore if you have an instructor who runs his course a certain way, you will find absolutely no major differences in the program from one ran several years ago.
My program has changed in-that I have added things to it since 1971. Obviously then we didn't have decompression computers to deal with, so this has been added. I haven't however taken
anything away from the course content (I've still retained strong swimming skills, breath hold, FMS usage, buoyancy, buddy-breathing, station breathing, bailout, doff & don, blackout drills and mild harassment) and include extensive dive-site/dive planning, gas consumption and rescue into the basic program.
I teach on a military base and my students are primarily fit young men and women who are looking for a challenge. Many years ago I was assigned to teach Navy Divers in the same location and this remains the duty station for Fleet Diving Unit (Atlantic). Students are well aware what is required by the military and some of my students take my program as a prelude to military or technical/commercial instruction.
By today's training standards a civilian might consider my training to be like boot camp (having no military training to compare it to). It certainly requires much more than is required to look at fish in vacation locations. Don't get me wrong, there's nothing the matter with a vacation diving program, it's just not what I teach.
I prepare my students to dive the North Atlantic. The water is cold (usually 30-38 degrees) with heavy surge and current. The conditions can be suicidal at times, when no one gets wet, but even on a moderate day it can be demanding on the diver. I teach divers to dive independently without supervision. Instruction is modular in a similar way as military programs are in Canada, the U.S. and the U.K. and in a manner followed by many commercial diving schools.
Advanced classes are advanced with deep ocean, navigation (no visual aids), wreck, drift and other experiences. DM includes vessel navigation, boat handling, compressor maintenance, equipment repair, extensive dive planning and full-rescue and evacuation.
I'm aware that others have suggested some of the "technical agencies." Certainly this can provide you with an increased level of diving training, if course content is what you seek. If you wish to build your personal endurance for bad conditions and lower your panic threshold, an alternative is to seek out a military or commercial instructor who teaches recreational diving on the side. You may find an old style NAUI instructor that retains some the old ways and is a "dinosaur" like me.