I don't post here often, but I think I know the answer to this question. I believe Fluid Motion extended the "transom pod" (under swim platform) by two feet, therefore, the waterline length changed from 41' to 43'. The LOA remained the same, 47'. The change occured with the 2021 model. This modification improved buoyancy in the stern, reduced splash over the swim platform and improved planing characteristics. There may have been some theoretical improvements in fuel efficiency but that's hard to tell since they also changed from IPS 400 to IPS 450 in 2021.
All other changes mentioned in this thread also occured, but the extended transom pod accounts for the extra 2 feet.