I base my CRS prediction on the number of ITA's issued in the previous draw (hence around 2800 ITA's considered for this prediction). In the table I have posted, you can see the CRS prediction based on increased number of ITA's.
For example:
if the ITA count ranges from 3040-3488, then the CRS cut off would be 432
if the ITA count ranges from 3488-3936, then the CRS cut off would be 431
oh yes ofcourse, the maximum CRS can come down to with these numbers is 431.