I myself have had times when i would have found it handy . One i can remember was when i was doing the dash conversion on my F250 . To have been able to see under the dash whilst making the brackets to hold it in place would have been a lot easier than jamming my head between the foot pedals with my legs over the back of the seat . I still do'nt think i'm quit right after that
Thank's to all for your encouragement .