Even though it is ‘soft copper’, it is still considered a ‘hard-line’ connect. Hard line connects have a problem with vibration (metal fatigue). You can use circular coils of copper to reduce vibration problems providing that the coil does not resonate with the device.
I wonder about the type of ‘braided’ lines we are talking about. There are braided lines and then there are braided lines.. I have found that stainless steel full closure braid will last longer than 5 years.
