I’ve gone through both the Barton and the Wilson system. I have found many benefits to yours over Wilson.
Your system incorporates a multisensory approach to sight words. Wilson does not have that.
Yours has a fluency and phrasing part in each lesson that Wilson does not have.
Students learn how to construct sentences as well as write dictated sentences.
Your scope and sequence goes to a higher level.
Although the Wilson System is strong, yours is much stronger.