I've been backing boats since age 15 now 47 also backed my pop-up for years with that short wheel base. Fished local tournaments often had to back the boat a 1/4 mile down the center of the road becau...
I still find myself giving too much steering input and too early, but using the mirrors is a must. The hard part is to not be able to see the blind side when backing. A good spotter is worth their weight in gold. Go slow and don't be afraid to get out and look. After while you will visualize it in your head before you do it and it becomes much easier.