Originally Posted by
Grumblegeezer
Mix WC with a lesser art? Gasp!!! That's just wrong!--Sheesh!
Ok, seriously now, Sticking to "pure" WC is fine. You can do a lot with that alone. Cross-training is also fine. It really comes down to what you want to do. Heck, I bought a unicycle a couple of years back and had a ball with it. I think people need to lighten up a bit around here.
Now to respond to the OP, I enjoy Eskrima and if I were younger, I would work more on grappling (by which I mean working from the clinch, throwing and groundwork). Those are choices that I feel complement rather than contradict my WC. And, if like me, WC has become your core art, I would seek out trainers or coaches in whatever other arts you choose who are amenable to cross-training and will help you integrate what you learn without watering down your WC.
And finally, whether you cross-train or not, testing your art against others who train other things, like Sanjuro Ronin advised, is not only good for your own development, it's fun.