I have no issues either...in fact I can raise my boat up WAY higher than I could imagine any vehicle would ever need to raise! I do this to drain the boat at home....the spot the boat is parked in leaves the bow down a little, so I have to crank the bow WAY up to get it to drain, this gives me probably 8-10" clearance above the hitch then I back up to it. So much clearance that I need to lower the jack before backing up to make aligning the ball easier.
Also, the topography of the spot you are parking in can make a big difference! If it isn't all flat, the tow vehicle nose can be on a down hill slope as compared to the boat, thus raising the hitch height significantly. See my crude and exaggerated example below.
View attachment 79741
The height at the arrow can often be quite different depending on the ground levels. I find the opposite problem where I park....I can't get the jack low enough for me to swing it into position because my boats stern and my vehicles front are both higher than the bow/rear, causing me to dig a small hole to get the jack to swing into position.
How about a wide shot (photo) of your situation...that would help us.