I ran about 500 feet of Bury Flex out to my 40 meter dipole array and found it to only have about a 35% loss going into the 4 SQR coupler- It's not hardline, but for the moeny, I was very pleased with it- But, it does not have a lot of flex to it. Better than 9913 but not RG8- 73 Paul N0AH