I agree.
The style that I practice focuses more on light-contact sparring for timing and reflexes, so for me, heavy bag work is necessary.
We do punching and kicking drills in class using bags and focus mitts, but not in every class, so the extra heavy bag work helps because I can practice that area of training more consistently.
In addition to being able to practice kicks and strikes with full power, working the bag is a great workout, and is a good stress releiver also.
Good technique without power is useless, as is power without good technique. Good point about conditioning. I think that is a major downfall for many students.
Most schools will condition it's students to a point, but I believe that you have to do work on your own outside of class as well, and the results are well worth the extra effort.

Edited by choonbee (05/28/11 07:01 PM)
Insert profound martial arts quotes or tough guy phrases here.