Some thoughts on mixing systems. They may compliment and they can work to nullify, or limit, the benefits of each other. I see Master Lin's advise as the way to ensure that you get the benefit of each.
Now, if I were to be practicing one thing and then noticed that I had naturally (and not consciously) transition or included something else, and it felt good, then I would choose to believe that I had simply follow some higher guidance. So I'm saying that if it just happened then it's a good thing. Not something you should necessarily decide to repeat, because it may have been what you need at that time, but not necessarily again.
There are times, when you just know that something should be a certain way. When you know this, they be comfortably following this knowledge. I however, would hesitate to then extrapolate that was is good for me, is therefore good for you. I'm sure at some point one's development, a person can routinely make such decisions, but for now, I'm more comfortable with "Is this good for me?" or "Is this good for them?" questions.
You are perfection.
Iam2
