I see a black machine planter in the classifies here . . . ..

Looking at it, (it's a split row planter - 12r30 or 7r15's), it appears the frame folds back around to the back for the splitter rows . . . .. .

Were there any issues with the frame hinge points holding up and work well ?
Does any other Mfger offer or make such an arrangement ?

Over all weight of the planter ? Overall reliability of the concept ?  

Who bought them out or what happened to them ?

To me, it appears, it's a well executed concept - Not dragging around the added weight of interplants while planting corn in 30 inch rows, more even wear of all planting units at the same time.