Hi Katy, about that...
Where would your cut-off be in regard to the most elevated planet? Say all the planets were below the horizon and the most elevated planet is a planet in the 6th house conjunct the dsc. Would you say that this planet is acts as if the most elevated?
well technically yes, but it would not be 'elevated' in the MC type of sense.
It would be important to note that it is the 'most' elevated, but that none of the planets are above the horizon, so that in itself is noteworthy.
Have you seen tight bundles in the top of the chart, with just one planet below, by the IC? That is very important as well, in terms of the 'deepest' planet, plumbing the emotional depths.