I don't think its too difficult. You just have to go slow if you haven't done it before. It's no different than anything else on the trucks, if you get tired, or angry while you are doing it, you just need to take a break.
I can still slightly feel the springs, but I suspect they were like that from the factory.
I did tie my seat bottom springs, though they have the metal ties. I found this really helped the seat, it spreads the load over a larger area.
