Breakaway car

I wouldn't rule out an installer skipping anything that had to be drilled and do only a bolt/on job. If I'm a DIY and what I'm doing calls for say a drill, I'll go buy one. Bought a $30 bit from a specialty shop to drill one hole in each of two leaf springs. First went well. Drill was shot by the time we finished the second. Cost of being a DIY. But I digress, chances are this was a "professional installation."