well the latest with the F3990 as I stated the other day I think we got the bagger/Cutting working fine. the next day I went out to cut after about 30 min I noticed clipping come out the from of the mower I stop and found the 8" flex got clogged it seem I picked up a stick and it got wedged in the tube and got the grass to clog. drove back to the barn and got it cleaned out. Well then I noticed oil dripping in the right hand corner looking like it was coming from the power steering cylinder, at this point I got disgusted and called the dealer to come and get it . which they did they found that the line going to the cylinder got pinched as it went thru the frame, problem was it had a special fitting and they had to order it, can in two days later they go to put it in and they find they is a issue with the power steering pump and that have to get a new one something broke during assembly. this is turning out to be a disaster while I like the machine, I am concerned about reliability in the long term.I am going to ask my dealer to have the regional sales rep give me a call.