And all the trolleys tilt back helps the wire run smoother down hill, a lot of workshops have them on a swing arm up in the air. The wire feeder anyway.
smoother down hill?
I cant see that happening
the biggest bug bear with a decent hand piece lead length is friction in the liner
this comes from dirty wire, old/worn liners,dust/wire fragments in the liner and tight bends in the lead
any of these things that can be avoided is a good thing
I just don't see the point inducing a problem for no reason
yes the swing arms are good but do have there limitations