All 680/90's coming here have the standard power fold. A few rice cockies are worried about the weight when its full, but surely they can empty before they get into the mud. The 670 would have to be ordered with that option well before it leaves the US. So do you think the lids and corner canvas pieces will handle the bit of extra pressure with the extension. Its amazing how much extra weight you get with only a small piece. I made a rough quick one for our 9760's in corn. It was 200mm high and that gave another three tonne. At water level the poor old girl had 11 tonne on her back,(weighed on scales). The 20.8x42 row tyres didnt like it much.
Where it wont rain is in the South West of New South Wales. Telling a lie we have had a bit over a period of three weeks,(only total of 20mm in my back yard). Enabling farmers to plant, alot had already dry sown as well. Iam in a heavy irrigated area, surrounded by red and grey dryland so have both worlds. Long way to go in the season, but its a poor start, and the late rain has cancelled alot of dryland canola planting.