What electrical issues are you guys having? When we first got ours it was hooked to our MX270 with a universal harness and had no issues. Then we got a 225 Magnum and every once and a while it would throw MCU, MIU, ECO electrical faults. Figured it was something in the tractor side as it worked find on the 270. Found the 2 fuse blocks were corroded. Cut them out and put new ones in and haven't had an issue since.

The planter is quite sensitive to the 12V supply it seems. The 1200 planter is an excellent planter and you should have no problems with the Pro600 monitor. It took me a few days to get it all figured out but it will give you all the info you need while planting.