As I interpret 'clamp down cable hanger ' around stem does what tightening stem atop fork under top cap does ..

Although with 1 smaller bolt rather than 2 .. Larger ..


Thread is Cut into steerer , so un cut is stronger,,, in a threaded stem the stem quill shaft helps.. ,

if wedge expands below, within the un threaded portion..



...OP
how old are those mechanics? how many years have they worked there ? doing just new builds or repairs And new builds ?


....