Edit: I meant to Title it as "The Line Between Dominance and Carelessness" but I missed it... can't change it now sadly...

I (M30) identify as a Sadistic Top. Only work with consenting adult partners that know what they are getting into, or trust me enough when trying something new. However during my play, I generally am either fully aware of my partner's status, or since I am not familiar with body language (especially during the first set of play sessions) verbally ask if she is okay and willing to continue. Maybe it takes her out of the subspace, but I want to make sure she isn't feeling afraid or uncomfortable. However, I am curious how far one could go with physically exuding dominance, without risking the stability of the sub. Hope this make sense.

Side note, if you have any good resources or reference material for RACK, I would appreciate it.