I definitely will ask about this the next time I see my instructors. But in the meantime, let me just try to clear this up in my head.
In a two out situation, and according to the SIM, the reason I would want to disconnect the RSL before cutting away the main (if this is the decision I were to make) would be to avoid having the main risers pull on the already-out reserve, which would likely avoid entanglement. Is that the train of thought behind disconnecting the RSL?
And same thing in other scenarios where the SIM advises to disconnect RSL: for example, if you land on a building. You want to disconnect (according to SIM) because that way your main can be cut away (to avoid dragging you off the building) and won't pull on the reserve.
I'm just typing out loud and trying to understand the reasoning behind the RSL disconnecting. Please correct me if any of the above is incorrect.
By the way, thanks for all the feedback. This website is awesome.