Part example. model as I received from the customer. (SW11)
Modifications required, simply add .030 [INCH] to the (2) two faces indicated in the screen shot.
Attached is the part, please feel free to roll back the feature treee and walk through the design evolution.
So, in your opinion:
Does it matter how you get to the end product?
After looking at the construction, I began a new part.
In this case, along with the simple request above, many other modications were required as is typical.
I was much further ahead creating a new model than trying to modify the existing one to "make it work".