Bill,
I believe Optimus 360 (SeaStar) only advertises this system as a DOCKING assist, not total joystick control like a Volvo IPS system.
You wouldn't use it at that Narrows.
Today on leaving my marina my Yamahas were WAY out of alignment, in a stiff wind in a very narrow marina fairway, and I scraped some cowling paint on a piling trying to get out of there. In our view, such comic cosmetic misadventures just add character to our boat and our experiences on her, and a can of non OEM Yamaha touch up paint is $20.
Your mileage may differ... a LOT!
Cheers!
John