The person that set up SFS apparantly used to work at Samco and ran off with the moulds which is why the SFS hoses are similar to the Samco hoses and are the same length and don't always fit properly.

My Dad has used SFS, Samco, Mocal and now Roose. The Roose hose is massively thick...

My own hoses are shiny black Roose hoses.