That's good, that'll help.
I got bigger fittings and a 1/2" hose.
Then I did some tests of my own useing one of these,
that I made.(see pic.)
The fittings reduced the pressure drop a lot, but switching to
the 1/2" hose was barely noticeable.
Maybe a real long hose would, I made mine 30'.
I set the pressure at the wall, reading the gage at the gun,
once set, I remove the gage. Works real good, for all my guns.
But if you run higher presssure, like above 60 psi to the gun (like most do)
and regulate down at the gun, the higher pressure makes up for any line losses so
it doesn't matter, fittings, hoses,etc.