I have sparse success, so I don't want to spar yet. My reasoning: I am not trying to develop "whatever works in sparring practice." I am trying to develop "one particular method, which would work in sparring practice once developed."
I think I get what you're saying, however I would add one bit of advice.
The practice (sparing, or whatever the practice you're working on) will tell you what works and doesn't. It could very well be that you're idea of what "should" happen is flawed. If you work on the theory for many years, and then find, once you start the practice (sparring or what have you) that your theory was wrong, it's all down the tubes.
However, if you allow the practice to inform you as you work your theory this is much less likely to happen.
Anyways, have fun, thanks for the honesty.