My .02. I'd rather not limit myself to one thing. I also don't think that training outside of the box will hinder or corrupt your training. I'll use myself as an example. My base art is Kenpo. That is the art that I've trained the longest, so one could say that is the one I specialize in. However, I cross train in BJJ and Arnis.
Now, I know alot will depend on the teacher. Some Kenpo teachers will say everything is in there, ie: punching, kicking, throwing, grappling, etc. Of course, depending on who your teacher is, will depend on how much of this knowledge is passed on to you. IMO though, I don't think that those aspects are as in depth as they appear. Sure we have weapon defense, however, if you choose to expand on that, and I did, then going to a weapon based art is what needs to be done. I, as well as some other people I know, have said that its hard to really get a good understanding of something outside of your art, if your art isn't geared to that area 100%. Is there grappling in TKD? Possibly, I don't know, but if I was looking to really expand my ground skill, I'm certainly not going to head to the local TKD club, but instead to the local BJJ club.
The same thing for weapons work. There are weapon based arts out there, that would probably stand a good chance of making some of the weapon defenses out there look like childs play.
In the end, it all depends on what each person wants to do, what road they want to take their martial arts. If someone wants to train one art, learning as much as possible, fine. If someone wants to cross train, fine. I often think though, that people think they have to devote another 30yrs to learning another art. They don't. I'm no BJJ champ, nor am I a Filipino master, however, my ground work and weapon work has improved greatly. The arts that I study, really do go hand in hand, and blend together very nice. I've found by working with other arts, its helped make
my Kenpo better. Because I now know how a grappler will operate, I can adapt the Kenpo defenses to work better.
I'll always be loyal to Kenpo, it'll always be my base. But, I'm not blind to the other arts out there. If I can take a simple thing, work it like crazy, and appy it to what I'm doing to my what I'm doing better, you can bet I'm gonna do it.
BTW, great blog article Brian!!!
