I would love to add my 2 cents worth to this fascinating discussion....what I would really love is to live near you guys to be able to train with you!!!!
Nothing extraordinary just a couple of biased comments.
1) I think endurance work is very over rated and over done in many dojo. A properly organized resistance workout, eg, minimal rest between intense efforts, provides all the endurance that one is likely to need for the street. It's a personal thing, but I think doing repetition air punches, kicks, etc up and down the deck is pretty much a waste of time. Far better to strength train and do "slammer drills." Running has been documented to be injurious to the joints over the long run (ha) I have many torturous drills that I expose my group to and all are hopefully contributing directly to the ability to survive a street punk and his "habitual acts of unwanted aggression." Back to the point, a resistance program that is based upon intensity can be performed outside the dojo setting and the benefits are enormous. In the dojo you can use medicine balls, duffel bags filled with sand, hojo-undo primative equipment such as nageri-gamae (gripping jars), ishi-sashi (stone padlocks - nowadays light dumbbells), sashi-ishi (training stones - if you have access to outdoor training have students clean and throw a heavy stone. It uses some of the same muscles involved in a punch or palm heel strike.), Uechi training stones (Rik Lostritto Sensei and I are writing an article on these as we speak), and the wonderful Okinawan chishi (weighted lever - or for us handyman impaired, a sawed off sledge hammer.) Found objects can be used very creatively. I have a 25 lb. disc with handles welded on the flat side that was some auction piece of junk that I use to do Sanchin with and rotate the dingus after each step as though doing a Seichin type double "block." End a session by having students sit on the floor facing one another and wrestle a baston trying to gain the advantage. All great stuff! Not to replace the resistance work outside of the dojo, however. An old Wing Chun proverb says "in a fight between two people from the same style, beware of brute strength and superior structure." I firmly believe the order of the admonishion is not random! Great strength can be developed from any rep/set protocol that is not harmful to the trainee and is followed in a disciplined and INTENSE manner over time. Presently I'm personally doing heavy singles on a very limited number of movements and really making a lot of gains. I've also gone the one set to failure route and that's productive also. I find that as I age, my ability to recouperate from that type of workout is more prolonged than I'm willing to tolerate.
2) I think it is very important for the teacher to teach the entire curriculum unchanged but to level with the student as to what they see as the limitations of any given movement/idea. It's all there for a reason and while I might not yet have figured out that reason, it may save one of my students lives. For instance, Sokuto Geri - one of my favorite Hojo Undo movements for a variety of reasons is probably the last thing I would consider using in a direct facing reference to someone bigger, stronger, or meaner than me. Especially as a preemptive strike I would much rather use a lead hand drop step shuto to the throat, face, guard hands, or where ever it landed, follow up with a bushoken against the cervical vertebrae and then take the angle and blast out the knee or leg with sokuto geri, but not as we do in Konchiwa bunkai. To demonstrate this to students I like to accept their sokuto geri and simply charge into them much as a big intoxicated lout might do before they put the boots to them. I think this kind of honest with students - demonstrating the efficacy of all of the movements of the system, what concepts underpin their use, and suggesting alternatives is all that any of us can do.