I'm interested in your thoughts on cross-training.
Not if you should cross-train or not - I already asked that here - but if cross-training happens, WHEN in a martial arts student's journey it should take place.
Some folks cross-train from the start. They will study, say, tae-kwon-do AND a grappling art like jiu-jitsu in order to cover all of their bases, all at the same time.
Others will get to a certain point in the study of a single art, then add in cross-training later. The idea here is to have a "base art" where you develop a lot of skills, then add in other martial arts to address gaps in that base art (like adding weapons training to an empty hand art, or striking for a grappler, etc.)
So I want to know what you think:
When is the "right" time to start cross training? From the beginning, or after you are competent in a "base" art?