C-20 air line size....

[GMC69]

On my C-20 I have a single 1/4" line running from my tank and splits to 4 manual paddle valves inside the cab, then 1/4" out to each bag.
I usually air up 2 bags at a time, so front together, then rear together. If I went to a 3/8" line from my tank then split to the 4 valves would it increase the speed much? Seeing how the single 1/4" line is feeding 2, 1/4" lines to fill 2 bags.
I thought allowing a bit more supply to the valves, there would be more volume available and possibly speed it up a bit. I'm not looking for a massive speed increase, just looking to see if it's worth my time to do it.
I already have some 3/8" DOT line here and would only need 2 fittings and a bit of time on my lift.

I'm running 2 Viair 380 compressors into a 4 gallon aluminum tank, that runs to the 4 manual paddle valves, then to the bags and some gauges. Pretty basic setup but it works.

The attached picture is aired to max height and aired out. With my setup I can have a catastrophic failure and still be able to drive it. At rest, the axle is on frame.