I use the mini 8 coax for patch cords. I use Belden 9913 from the radio to the antenna.
The mini 8 is very flexible and has 95% shielding - but get the best stuff. You can tie it in a knot - but I wouldn't do that. I generally don't use a jumper/meter between my radio and my coax that goes out to my antenna. I use a Dosy meter with a 3
ft piece of mini 8 jumper coax when I want to test, monitor, or adjust a radio. I like a direct connection to my antenna and radio with nothing getting in the way in order to keep the signal integrity high. So long as you use it in 3
ft or 6 foot lengths and make your own using silver-plated connectors, you would be doing it as right as one can do - IMO...
Just two cents worth.