This one goes hand in hand with the previous post. That said, you do not need to read the last month's installment, but if you do, it will give you a bigger picture of the subject.
A typical student of a typical martial art is typically driven (early on at least) by achieving the next belt/degree, which is why after the 3-6 month mark, probably the biggest drop off point in the number of students is a year or so after they get their black belt. That is characteristic of extrinsically motivated people, i.e. a lot of them in today's consumer societies. Also a common feature of such practitioners is incessant hunt for new techniques and tricks. It is baffling, really, that to this day there are so many people believing the "secret" to greatness of success lies in the material itself, rather than in the person using it. After all, how do we explain the fact that some exponents can successfully pull off techniques others can't make work? As master Rey Galang says during his classes (albeit in the way I paraphrased it, to make it more memorable):
So, yeah, it boils down to elbow grease and dedicated work on the stuff one's instructors are teaching. And then, ask yourself, how much time during the day (if aiming at real competence, you can't allow yourself to think in terms of 2-3 times per week) you can invest in training? Well, how much material do you think one can cover efficiently and meaningfully? Hmmm...does it make sense to collect dozens upon dozens of techniques in that case?
That brings us to the need and desire for cross training. I belong to the camp that argues for the necessity of such approach, if one is motivated by combative effectiveness in their martial training. The above considerations could be used here as a filter to help you decide which systems/instructors to work with in order to make your skill set compact and functional. Namely, their methods should be complementary, both in terms of fighting ability and training economy. When you can work on things that fit well together, it is easier to approach them in a single act, thus making every minute of practice count. Otherwise, you might be struggling in vain.
Be honest with yourself and it will be easier to be true to your quest.
