Yes, except for one thing. After 1 hour, slowly drain about 1-2L of wort into a pot, and gently pour back on top of the grain. This helps set your grain bed, and clarify your wort. Then, drain all the wort into a pot.
Add about half of your sparge water into the mash tun, and stir like crazy. I then like to let it sit for about 5 minutes, but that is optional. Repeat the step above.
Then add the rest of your sparge water as above.
Basically, you have been adding your sparge water 1 step too soon.
Of course, if your beer is turning out good, you might consider not making any changes.