Thanks for your detailed (and thoughtful) reply.

I should point out that I make a clear distinction between hard and soft limits. Hard limits are just that and violating one would constitute a serious breach of trust in my mind. Soft limits to me are areas of play or levels of intensity that I find challenging but am willing to have "on the table" sometimes as a possibility. In a CNC context I know that they may happen (or may not) but I am making an informed decision to give prior consent and to proceed.

I would never engage in CNC play that was without limits and where the areas of potential non consensual play were not clearly understood.

To be clear, my former hard limits that are now soft are are activities I agreed would be on the table in a CNC session. I experienced them in that context, not as a violation of a hard limit.

edit

It occurs to me that it might be more accurate to call such play irrevocable consent rather than CNC.