Working on mastering one system vs working onmastering many systems
Hhhhhmmmmmmmm
There is a great deal to learn in any one system and a person could spend a life-time in pursuit on mastering one system. This is time well spent.
There is also much to gain by getting involved with two three or more systems. It can become something like a course in comparative religion. It also gives you the ability to see which works/feels/ better (this is a completely personal judgment. I do not mean that one system IS better).
I personally have chosen to study many systems. Just my choice. It feels right to me.
rich