Drilling - Is That What You're Doing?

i remember i read a arid book. I think it's called mastery, and i think i heard someone recommend it once. It basically talked about ifferent types of practitioners of various arts. And that definitely influence how i thought of a drilling in the sense where  it's like, ok, i'm going to use drilling as a time to tinker and play around with certain ideas. What are some variables that i could change in situations like this when i drill? And then how can that effect what i do?! Yes! That makes absolutely yes. Or having that, i guess, the fade back being given while you're, while you're drilling to help inform the drilling