Having a dog that retrieves is a great trick, and very useful!! My older Vizsla had no interest what so ever in retrieving and it wasn't until we started training for open obedience that I decided to train him in earnest to retrieve. Although I can't say we went step by step through Shirley Chongs method (I didn't even know it existed) we did something very similar. We clicker trained it step by step through the look at, nose touch, lip touch etc. etc. He now has his CDX title and the only individual exercise he didn't fail at one time or other in Open was the Retrieve on Flat He has also won Gundog Working Tests which involves a simple mark retrieve.
But, even more importantly it has been helpful. I have used his retrieve to retrieve shoes the Whippet has taken out in the yard, remote controls I can't reach, TV guides, even the end of the vacuum cleaner!! Can you tell I'm lazy
Thankfully my young Vizsla is a much more natural retriever although we did work on the hold etc.
Here are the two with their retriveing dummies.