Hi Neil,
Not sure if the question about network was for me ?
I haven’t used network in my attempts yet just blend and fillet.
The issue I see is the way the profile of the Head and base is
affected when the Boolean subtract goes thro a fillet.
With the simple method of blend or fillet it quite easy and quick.
Maybe not the best method if you wish to control the profile
of the back of the head and base.
Cheers
Barry