This area sits in a severe-heat climate band, and that matters more for cable life than people expect. Heat cycling - garages that sit at high temperatures for hours and then cool fast overnight - accelerates the breakdown of the zinc coating on galvanized cable, and once that coating goes, the strands underneath corrode and fray faster than the cable's rated life would suggest. On the newer torsion setups common since 2000 in Trophy Club, the factory cable is often a thinner gauge than what we'd put on an older, heavier door, because it was speced for a lighter original panel. Add a heavier insulated replacement door later - which households at this area's income level, median around $193,026, do more often than most - and you've got a cable working harder than it was built for, in a climate that's already shortening its life.