pre ovulation shed as described by the barkers

hi

In the Ball python book written by said authors, they have an extensive and very informative section on all aspects of breeding.
In one part they mention a 4 shedding period that depicts and outlines the whole duration and stages of the breeding cycle.,

my question basically stems from the fact that i have 3 females that have locked up with chosen males, and they have all shed within a few weeks of each other.
has anyone recorded shed dates prior to ovulation and if so how long after on average or specifically was ovulation? was there a pattern you recognised?

i think this is quite a good question and am looking forward to seeing what you guys say

look forward to your comments

chris