Stick With It
My suggestion is to stick with it until you get it. Like Jim Parker says, "Anyone can learn to ride a Cruzbike. It might take some 5 minutes and others 5 days, but anyone can learn." (I hope that quote is accurate). Cruzbike riders don't possess some special ability that others don't have, they just practiced until they got it. In my case I started with the Sofriders, then went to the Silvio, then to the Vendetta. You have started with the most extreme of the three so given it some time. Find a big empty parking lot (or something comparable) and ride round and round until you have it down. How many times do you get to learn to ride a bike in your life? Enjoy the experience. Once you master it you may find your other bikes good for collecting dust. The Vendetta is a lot of fun to ride. Mine was one from the first production run so I have had it for about two and a half years. In that time I have accumulated probably 20,000 miles plus. (Just got in from a 67 mile ride). You can do it.