![](http://www.mapshots.com/ftp/weblinks/images/MapShotsNoText.png)
| I've had this out here before, but here is a map of 3-point hitch draft on a ripper. The agronomist at this farm says it matches well with tough spots (more visible on fields that I don't have pictures of). I would think that you could do a productivity map and have something similar from just ground speed. There are also interesting pictures from wheel-slip maps, but like draft, you need to be working with a datalogger that will give you access to the required info. ![Draft Sensing Draft sensing](http://www.mapshots.com/ftp/weblinks/images/draftsensing.jpg)
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