Its not an easy term to strictly define.
IMO, The term should not be applied to MPA`s but to MP`s, but people above are doing it. Everything an MPA does is within her limits, otherwise by definition they would not happen. Yes each MPA has different limits and for varied situations. So the fact that people view it is an MPA thing vs MP thing is the first confusion.
But each MP might have different limits. If I say within limits of Allure, Alphacare, Asian Spa A, Asian Spa B, it might mean something totally different, as general sessions (limits) could be viewed as different at each spa.
Then what some people consider to be within limits is differen. Some people view activities that start with D`s, as within limits, pthers as just within limits, others as pushing limits, or others as just outside limits. Activities beyond that are seen by many as outside limits - but then people either do not mention limits in thpse reviews, or will give a great review and then say everything of couse was within limits.
But the confusing part is you can see a great girl and have a fun session with everything truly within limits (and well below in some cases), so people will say it was fun within limits. So we have the within limits used as code, and the within limits used as truth.
So either trying reading into it, or just go out there and see for yourself!!