more than 22 years as electrician and low voltage technologist; So I can't help but feel like if I had that when I was at att I'd probably retire LMAO. probably no! but the TDR on this boy is very accurate for that first mistake. The standard mounting features are what most professionals know and love about Fluke. tdr takes care of it. Although I'm no longer in the OSP, I rarely have major problems like multiple rodent infestations or a wet cable; Even on stations and demarcations this application kit kills the game when looking for IW errors like shackle shorts or ndt/oh or high open on station cables or socket errors. .Of course, for old heads, knowing what these errors sound like will help you, but even we tdr double our skills. The pros know what I'm talking about, but even if you're a shoe specialist, you'll be in the black and making money with this stock set.