I have a 7 ft garage door height and it was programmed to stop on the running track leaving a clearance from the ground up of 81 inch (I’ll probably be adjusting it a bit more in the future). It’s tight but it fits the WX1910. I lowered my trailer post/steps down on the trailer post a few inches to help. When I back it in, I use the truck to take it so the wheels enter the garage, and then a bit, and then unhook it from the trailer and power it cranking a Trailer Valet. Not ideal, but it’s the biggest boat I could find that fit in my garage.
If I ever move or buy another house I’ll make sure the garage fits a 620 or 621
J