Common on other types of boats
The single lever control is very common on competition ski boats and other power/sail boats. I believe that it is a much better setup then the dual control, in that when you really need to change directions fast, you only have one lever to deal with.I found that it took me quite awhile to get used to two levers after using a single lever for years, and I would go back to a single lever again. I have been looking at the new single lever setup by Edson myself, with the idea that I will switch to it eventually.The other thing that it would probably alleviate is the shift lever hitting on the console. That one is a real bother.