what temp is the fridge at and what pressure, your taps you can slow the pour down so too short lines is not an issue.
Have you tried slowing the pour down (via the tap) ?
What do you mean by regassed. If you've over carbed them simply shake the keg and release the pressure to vent the co2. Leave the co2 line off untill it is carbed to the correct level. The extra co2 should still push it out of the tap till then. When its all good hook up the co2 again at 6psi.
Its over carbonated.
Releasing the gas from the headspace while cold will make very little difference to the gas level in the beer.
Take a keg out of fridge, open pressure release valve, leave at room temperature overnight, close valve, put back in fridge, gas again. Do not apply pressure any higher than 80kPa during the gassing process, be patient, and regardless of your fridge temperature, your line diameter, your line length you will end up with a pourable beer.
Can you completely stop the flow of beer with the flow control? Push it to the extreme both ways...
We followed the advice posted by Guest Lurker
Try and turn the flow control on super slow, like a couple of millimeters at a time and see what happens when it first starts to come out - or have you tried that? Just that with my taps, I can get over-carbed beer to pour anyway if I turn it on sensitively enough...Yes, we can completely stop the flow of beer with the flow control
The temp of the fridge is ? - The temp control is set at 1 .. we need to buy a temp gauge. We generally pour at 80 to 100 KPa