What's the cleanest way to wire a cut off switch

Well since the OP mentioned this, HE has to pass NHRA. If the tech guys didn't catch yours, it's because they didn't LOOK or ask

I can not understand what could be better than this installation of a race cut - off switch which uses OT size cables running the length of the welded in sub frame connectors as well as both sub frames being held on with metal and rubber cable holders screwed on. The installation is clean and no where near any heat or substance which can create a problem. The cut - off switch itself is a bonified race cut - off switch sold by many companies today. The upper end of the switch is easy access for the driver in case of an accident of any kind. It's been this way for many years and never a problem..