works better on a bigger machine, less bouncing around, more stable.
I saw a weird setup on a D9T, single reciever mounted on the roof. mining application check it out at the cat mining site main page
Although I agree it is nice on a scraper, I don't think it is a must. A good scraper hand needs to know how to read the grade around him. If you have a GPS blade, he is then your grade checker. He should rip or scarify at cut, key out features with ditches, if there is no windrow, there isn't enough dirt and the scraper needs to fill. When screwing the grade down tight, if the blade spins a tire the scraper needs to remove the entire windrow cause there is still cut there, if the windrow dwindles to near nothing he needs to give the blade more dirt to work with. It is that scrapers job to read the actions of the blade. JMOYes, i think having it on a scraper is a must.