Never seen anything like that before either and he said it didn't even knock him out of the seat. Taking a good look at the break area shows that it's a completly new break. It had not started to break some other time creating a weak spot and then finished off this time like one may have thought.
The GPS saves a lot of wasted money when it somes to overlapping passes. He also uses it on his 88 when he spreads dry fertilizer and on his larger tractors when he plants or no-tills. The first time he used it was with dry fertilizer and he saved within about $400 of the cost of the unit just the one time.