Re: Spey cast....
That is one of the better videos available. His instructions are clear. They make sense for anyone who is just getting started or for those who need a refresher. In a perfect world, we all would be practicing on water. I'm lucky to have moving water that is wide enough about 15 minutes from my house. Practicing on the grass makes sense if you don't have that luxury.
If you think that the grass gives you plenty of resistance, wait until you hit the water. That resistance will help you load up your rod more to throw those long bombs further.