The highest possible scrabble move

This may even interest the non-scrabblers i believe.

Using only words from CSW (Collins Scrabble Words) and only possible though unlikely moves for the entire game, Dave Wood found a 1786 points play with the rack ABEOPXZ to make oxyphenbutazone.

OXYPHENBUTAZONE    54 x 3 x 3 x 3 = 1458

OPACIFYING                                21 x 3 = 63
XIS                                                             10
PREQUALIFIED                                          30
BRAINWASHING                          21 x 3 = 63
AMELIORATIVE                                            17
ZOOGAMETES                                              32
EJACULATIONS                            21 x 3 = 63
7-letter bonus                                                50

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TOTAL                                                         1786