Hey Dave,
This is a very interesting topic. Efficiency is something we are all striving for in the martial sciences. You first learn in this field through repetition both physically and mentally. Once you have it (whatever you are studying) then you can fine tune it to a point of doing the most with the least effort.
Transmitting to other practitioners:
Teaching can only be shortened for you students if they can grasp where you are going. Since everyone learns at a different level some people will pick it up fast and others will struggle. That is just the way it works. However as a teacher I try to find what each individual needs to learn and how they learn it best so that they will learn it quickly and efficiently. Sometimes it works and sometimes it will not. Having said that students that practice IRT generally benefit because of how the delivery system is set up. They do not need to go through all of the painful, learning and unlearning that I had to. (At least not on the same scale)
Great topic and great post!!
I remember when I first started TKD. There's so much I didn't know that it was impossible to relax into anything! Actually, I think that stays with you in some form no matter how long you train. Now, consider someone who has switched arts.
Switching arts definitely isn't relaxing considering that you now have to unlearn a lot of stuff and adapt to a new way of doing things. It's kind of like getting older. The more things start to creak and crunch, the more relaxed you become about most things. This, of course, is really nothing more than experience.
I'm not sure if there are any shortcuts but I do have an idea for experimentation........ How about pairing good, established teachers from different arts up with people who are proficient with body movement but haven't had any type of martial arts training (one such method starts with an F, btw)? They've already learned a thing or two about body movement so they're not going to be fighting the awkwardness of having to learn how to move their body properly. If there were any shortcuts, it seems like they would be easily picked up by such people.
Pstarr has a great article out there about the importance of establishing a strong base. Maybe one good thing about drawn out training is that it teaches people how to endure the dreaded plateaus that are a part of training and life. Maybe that's why people don't do shortcuts so much? In the case of needing to train someone quickly, the personal development stuff is out the door. Asking for a little personal development in return for the ability to potentially harm someone doesn't seem like too much to ask, in my opinion. There are those, however, who adamantly disagree.