If you want to go factory receiver/steering then get a quote from your dealer on the new(er) Agco Trimble or NovAtel receivers. Both options are far cheaper than the Topcon option previously. They can fit to any of the current or previous SCR generation machines models from about 2011.
The other benefit beside price point is that AGCO/Fendt are only selectively adding new features to the older Topcon based receivers when they roll software updates. The Trimble and NovAtel receivers get all the features working. They claim this is due to hardware limitations on the Topcon units, but suspiciously I think it’s the slow way of dropping full software support for the Topcon units.
Nothing. gone silent. I’ve just emailed again. Supposed to be going to a dealer day in February on the wonders of VarioGuide, so hopefully find out more.Did you ever get an email from the guy at Fendt on the software updates