Totally saved my butt once too. Had a client ghost after the first draft. That kill fee was the only reason I got paid anything.

Seems like a solution in search of a problem. Most guys just wipe their gear down between clients, it takes ten seconds. That whole setup sounds more complicated than just cleaning as you go.

My buddy swore by his little telescoping inspection mirror for years and I always gave him crap for it. Then he was looking for a short in a packed disconnect, couldn't see a thing, and that dinky mirror on a stick found a chewed wire tucked behind a lug in like two minutes. I had to eat my words and got one the next day.