Hey Mow Mony and Richard Martin, I'm not sure if its a upgrade from the 90 but it is just as powerful and it is a few pounds lighter. I'm hoping I can get good use out of it and not have the troubles some people have had including myself with the 4 strokes.
Riding Green I live on Vancouver Island in BC, we do not get a lot of snow. So far this winter we had 2 snow falls and the snow was gone by days end. Today was 58 degrees and I mowed a lawn.