Nope! They are one in the same, just different phrasing. The phrase "main point" is usually used in RC stims while "main conclusion" is usually used in LR stims.
... are things incidental to pre-phrasing procedures which are valuable, and ... />
To whatever extent pre-phrasing strategies work, it is coincidental ...
I will kick things off on this one with a brief discussion/rant against pre-phrasing strategies. In short, pre-phrasing is bad and you shouldn't do it. To find out why--and what to do instead--come and see me this Thursday!