Front panel connectors and cable

Inside view of the front panel. I would love to use 0.141" hard line coax to connect the front panel connectors to the slim modules but I'm breaking my fingers trying to bend the coax. I wonder if I could use the semi-rigid 0.141" coax instead, I think to remember that Sam recommended using the hard line coax for high power connections (which the input connectors kind of are). Alternatively, I also have 0.086" aluminium hard line coax.