I'm putting up a fabric hoop building, they use wire rope and turnbuckles for diagonal bracing. How tight should the wire rope be? I've looked online and can't find any info, the instructions don't say. I'm thinking it should be like a fan belt, where they tell you how far you should be able to deflect the belt with your finger at the middle of the span. I called the company, they said it should be "snug". I wonder if those are metric snugs or SAE snugs.