I am currently trying to reduce the amount of serving tube I have to deal with for my freezer setup. I use picnic taps, no collar, 14.8 CF freezer with 8 kegs and a 20# CO2 tank. Right now I am at a serving pressure of 12-13 psi, 42F. I have several kegs with 10’ to 12’ of 3/16" Ultra Barrier Silver tubing. I was unhappy with having to use so much tubing to serve my beer at proper carb pressure, so I ordered some 1/8" Tygon tubing to shorten my tubing. I also ordered 1/8" x 1/4" barbs and use about an inch or so of 3/16" tube to connect to a picnic tap.
I hooked up a few lines to the kegs and they are pouring great. No foamy mess at all, and I think I could use 2’ - 3’ for a good pour. I call it success. Will use this setup moving forward and won’t have to have big coils of tubing on top of each keg.
I do the same but in the dip tube. For highly carbonated beers, I’ll use two or three. I hate serving/drinking undercarbonated wheat beers, Belgians, etc.!