BC races and weight.

[Wrongly]

I have noticed that several Eruo runners are dropping weight in these BC races.  Yesterday carried 128 pounds in her last race and will only be carrying 123 in the Filly & Mare Turf.  Adain O Brien also has Powerscourt in the Turf who will be carrying 126 pounds, but has carried anywhere from 130 to 133 lbs this year.  In these long turf races how will these weight shifts effect the number?