This is my estimation of CRS score distribution by 29 May based on distribution on 26 April and 1 May, guys
CRS score distribution of candidates in the Express Entry pool as of April 26, 2019
CRS score range Number of candidates
601-1,200 279
451-600 1511
441-450 4957
May 1 invitation =3350
279+1511+ 1100 (+/- 220 EOI enter the pool per day for 450+ points from 27 April to 1 May ) = 2890 + 460 from (4957 of 441-450 rank) total invite 3350
May 1 CRS score distribution would be
601-1,200 0
451-600 0
441-450 4497
CRS score distribution of candidates in the Express Entry pool as of May 10, 2019
CRS score range Number of candidates
601-1,200 317 = +/- 32 per day from May 1
451-600 1,668 = +/- 167 per day
441-450 5,360 = +/- 86 per day (5360-4497)
By May 29 the CRS score would be
601-1,200 317 + 608(32 x 19days) =925
451-600 1511 + 3173 (167 x 19days) = 4841
441-450 5360 + 1634 (86 x 19days) = 6994
You guys can see the cut off score will be above 451+ even if CIC increase the quota up to 3900.